M Series ETCO2 Operators Manual

The issue date or revision level for this operation guide is shown on the front cover. ZOLL is a registered trademark, and M Series is a trademark of ZOLL Medical Corporation. CAPNOSTAT is a registered trademark and LoFlo is a trademark of Respironics Novametrix LLC. Cidex is a registered trademark of Advanced Sterilization Products, a Johnson and Johnson Company. Nafion is a registered trademark of DuPont. System 1 is a registered trademark of the Steris Corporation.

© 2005 by ZOLL Medical Corporation. All rights reserved.

END-TIDAL CARBON DIOXIDE (EtCO2) General Information Product Description M Series™ units, equipped with software revision 38.25 or higher, and M Series CCT units, equipped with software revision 57.50 or higher, support two End Tidal Carbon Dioxide (EtCO2) monitoring options for the continuous measurement of respiratory carbon dioxide (CO2) and respiration rate. These options use the same connector on the M Series unit and may be used interchangeably. The first option uses a unique mainstream, solid-state infrared sensor called the CAPNOSTAT® 3 Mainstream CO2 sensor. The CAPNOSTAT 3 sensor is attached to an airway adapter that connects to an endotracheal (ET) tube or other airway and measures gases flowing through these breathing circuit components. A disposable mouthpiece may be connected to the adapter for monitoring non-intubated patients. A Capno2mask is also available for use with nonintubated patients. This option provides for O2 delivery while monitoring expired CO2. The second option is a sidestream sampling system called the LoFlo™ Sidestream CO2 Module. The LoFlo module contains a gas sampling pump, which draws small samples of gas from the patient’s airway via a nasal/oral cannula or airway adapter, and passes these gases through a solid state infrared sensor (located away from the patient’s airway) that measures CO2. While the sidestream system is typically used on non-intubated patients, it can also be used for EtCO2 measurement on intubated infant, pediatric, and adult patients. The sidestream system should not be used, however, on intubated patients who cannot tolerate the 50ml/min removal of the sample gases from their breathing circuit. The sidestream module uses specially designed sampling cannulae and airway adapters for sampling airway gases and passing them through an integrated sample cell, which connects to the LoFlo Module’s CO2 sensor. These cannulae incorporate a filter and sample cell, providing maximum filtration of fluids and contaminants, and protecting the system from aspiration of these fluids. In both systems, the CO2 sensor generates infrared light and beams it through the airway adapter or sample cell to a detector on the opposite side. CO2 from the patient, flowing through the mainstream airway adapter or aspirated into the sample cell, absorbs some of this infrared energy. The M Series unit determines CO2 concentration in the breathing gases by measuring the amount of light absorbed by gases flowing through the airway or sample cell. The M Series unit displays EtCO2 (the concentration of carbon dioxide detected at the end of each exhalation) as a numerical value in millimeters of mercury (mmHg), percent (%), or kilopascals (kPa). In addition, the unit can display a capnogram waveform. This waveform is a valuable clinical tool that can be used to assess patient airway integrity and proper endotracheal (ET) tube placement. The unit calculates respiration rate by measuring the time interval between detected peaks of the CO2 waveform. The technology differentiates between waveforms caused by breathing and those caused by cardiogenic oscillations and artifact.

How to Use This Manual This section explains how to set up and use the M Series End-Tidal Carbon Dioxide option. Important safety information relating to general use of the M Series End Tidal Carbon Dioxide monitor appears in the “Safety Considerations” section of this manual. The M Series Operator’s Guide provides information operators need for the safe and effective use and care of the M Series unit. It is important that persons using this device read and understand all the information contained therein. Please thoroughly read both safety considerations and warnings sections before operating your M Series unit. All CAPNOSTAT 3, LoFlo, airway adapter and cannula questions with regards to the Declaration of Conformity with European Union Directives should be directed to the authorized representative for Respironics Novametrix LLC: Respironics Novametrix LLC Authorized European Contact Respironics Deutschland Gewerbestrasse 17 82211 Herrsching Germany +49 8152 93060

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Safety Considerations WARNINGS General •

Carefully read the M Series Operator’s Guide and these operating instructions before operating the EtCO2 monitoring option.

•

Ensure that the M Series EtCO2 option is operated by qualified personnel only.

•

Do NOT use the M Series EtCO2 option as an apnea monitor.

•

Do NOT immerse the M Series unit, patient cables or sensors in water, solvents, or cleaning solutions.

•

If the accuracy of any reading is suspect, first check the patient’s vial signs by alternate means and then check the M Series EtCO2 option for proper operation.

•

•

If an alarm condition occurs while the alarms are suspended, the suspended alarm indications will only be visual displays and symbols. No audio alarm indications will occur.

•

Elevated oxygen levels, nitrous oxide or halogenated agents contained in the breathing gases may degrade the accuracy of measurements made with the M Series EtCO2 option. Activate oxygen compensation if O2 levels in excess of 60% are introduced. Activate N2O compensation if nitrous oxide is introduced into the airway circuit. The presence of Desflurane beyond 5% may positively bias the carbon dioxide reading by up to 3 mmHg.

•

Do NOT use the LoFlo module on patients who cannot tolerate the removal of 50ml/min from the airway.

•

Carefully route patient cabling and gas sampling tubes to reduce the possibility of patient entanglement or strangulation.

•

Do not touch the bed, patient, or any equipment connected to the patient during defibrillation. A severe shock can result. Do not allow exposed portions of the patient’s body to come in contact with metal objects, such as a bed frame, as unwanted pathways for defibrillation current may result.

To ensure patient safety, ensure that the ECG-out jack and modem (if available) are only connected to other equipment with galvanically isolated circuits.

CAPNOSTAT 3 and LoFlo Sensor and Accessories •

Always ensure the integrity of the patient breathing circuit after insertion of the mainstream or sidestream airway adapter by verifying a proper CO2 waveform (capnogram) on the monitor display.

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•

Do NOT use CAPNOSTAT 3 or LoFlo sensors in the presence of flammable anesthetics or other flammable gases.

•

Do not attempt to open the sensor. An electrical shock hazard exists internally. Refer servicing to qualified personnel.

End Tidal Carbon Dioxide (EtCO2)

CAUTIONS •

CAUTION: Federal (U.S.A.) law restricts this device to sale, or use by or on the order of a licensed medical practitioner.

•

Use only ZOLL/Respironics Novametrix CAPNOSTAT 3 sensors and LoFlo modules, airway adapters, nasal and nasal/oral cannulae with the M Series EtCO2 option.

•

The device is protected against interference from radio frequency emissions typical of two-way radios and cellular phones (digital and analog) used in emergency service/public safety activities. Users should assess the device’s performance in their typical environment of use for the possibility of radio frequency interference from high-power sources. Radio Frequency Interference (RFI) may be observed as shifts in monitor baseline, trace compression, display brightness changes or transient spikes on the display.

•

Do NOT sterilize or immerse the CAPNOSTAT 3 sensor or LoFlo module.

•

Do NOT reuse or sterilize the disposable airway adapter, airway adapter with mouthpiece, Capno2mask, nasal or nasal/oral sampling cannulae, or airway adapters, as system performance will be compromised. These items are intended for single patient use only.

•

Do NOT use a damaged sensor or airway adapter.

•

Do NOT use the device if it fails to operate properly.

•

Do NOT place the mainstream or sidestream airway adapters between the ET tube and the breathing circuit elbow, as this may allow patient secretions to accumulate in the adapter.

•

Position mainstream airway adapters with windows in a vertical, NOT a horizontal, position. This helps keep patient secretions from pooling on the windows.

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•

Do NOT insert any object other than the sample cell into the sample cell receptacle on the LoFlo module.

•

ZOLL Medical Corporation recommends that the CAPNOSTAT 3 airway adapter be removed from the circuit whenever aerosolized medication is delivered. The increased viscosity of the medications may contaminate the adapter windows, requiring premature cleaning or replacement of the adapter.

•

In order to eliminate the potential buildup of CO2 inside the storage bag, ensure that the LoFlo module exhaust tube vents gasses away from the module environment.

•

To avoid injury to the patient, remove the nasal/oral cannula from the patient before cutting the oral cannula tip.

•

Do NOT apply tension to the sensor or module cable.

•

Periodically inspect the sampling tubing for kinks.

•

Monitor the capnogram for an elevated baseline. If an elevated baseline is observed, verify patient condition first. If the care giver determines that the patient condition is not contributing to the elevated baseline, follow the instructions for zeroing the sensor or module detailed in this manual.

•

Do NOT store sensors, modules, airway adapters, or cannulae at temperatures less than -10° C or greater than 55° C.

•

Do not operate sensors or modules at temperatures less than 10° C or greater than 40° C.

•

Refer servicing to qualified personnel.

•

Do not use the LoFlo module with M Series units that have a software version lower than 38.25, or with M Series CCT units that have a software version lower than 57.50.

•

Make sure to insert the protective cap into the LoFlo module when it is not in use.

M SERIES OPERATOR ’S GUIDE - OPTION INSERT Warranty (U.S. Only)

Software License

(a) ZOLL Medical Corporation warrants to the original equipment purchaser that beginning on the date of installation, or thirty (30) days after the date of shipment from ZOLL Medical Corporation's facility, whichever first occurs, the equipment (other than accessories and electrodes) will be free from defects in material and workmanship under normal use and service for the period of one (1) year. During such period ZOLL Medical Corporation will, at no charge to the customer, either repair or replace (at ZOLL Medical Corporation's sole option) any part of the equipment found by ZOLL Medical Corporation to be defective in material or workmanship. If ZOLL Medical Corporation's inspection detects no defects in material or workmanship, ZOLL Medical Corporation's regular service charges shall apply. (b) ZOLL Medical Corporation shall not be responsible for any equipment defect, the failure of the equipment to perform any function, or any other nonconformance of the equipment, caused by or attributable to: (i) any modification of the equipment by the customer, unless such modification is made with the prior written approval of ZOLL Medical Corporation; (ii) the use of the equipment with any associated or complementary equipment, (iii) installation or wiring of the equipment other than in accordance with ZOLL Medical Corporation's instructions, (iv) abuse, misuse, neglect or accident. (c) This warranty does not cover items subject to normal wear and burnout during use, including but not limited to lamps, fuses, batteries, patient cables and accessories. (d) The foregoing warranty constitutes the exclusive remedy of the customer and the exclusive liability of ZOLL Medical Corporation for any breach of any warranty related to the equipment supplied hereunder. (e) Limitation of Liability: ZOLL shall not in any event be liable to Purchaser, nor shall Purchaser recover, for special, incidental or consequential damages resulting from any breach of warranty, failure of essential purpose, or under any other legal theory including but not limited to lost profits, lost savings, downtime, goodwill, damage to or replacement of equipment and property, even if ZOLL has been advised of the possibility of such damages.

Read this Operator's Manual and License agreement carefully before operating any of the M Series products.

THE WARRANTY SET FORTH HEREIN IS EXCLUSIVE AND ZOLL MEDICAL CORPORATION EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES WHETHER WRITTEN, ORAL, IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. For additional information, please call ZOLL Medical Corporation at 1-800-348-9011. International customers should call the nearest authorized ZOLL Medical Corporation service center.

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Software incorporated into the system is protected by copyright laws and international copyright treaties as well as other intellectual property laws and treaties. This software is licensed, not sold. By taking delivery of and using this system, the Purchaser signifies agreement to and acceptance of the following terms and conditions: 1. Grant of License: In consideration of payment of the software license fee which is part of the price paid for this product ZOLL Medical Corporation grants the Purchaser a non-exclusive license, without right to sublicense, to use the system software in object-code form only. 2. Ownership of Software/Firmware: Title to, ownership of and all rights and interests in the system software and all copies thereof remain at all times vested in the manufacturer, and Licensors to ZOLL Medical Corporation and they do not pass to Purchaser. 3. Assignment: Purchaser agrees not to assign, sublicense or otherwise transfer or share its rights under the license without the express written permission of ZOLL Medical Corporation. 4. Use Restrictions: As the Purchaser, you may physically transfer the products from one location to another provided that the software/firmware is not copied. You may not disclose, publish, translate, release or distribute copies of the software/firmware to others. You may not modify, adapt, translate, reverse engineer, decompile, crosscompile, disassemble or create derivative works based on the software/firmware.

NO IMPLIED LICENSE Possession or purchase of this device does not convey any express or implied license to use the device with replacement parts which would, alone, or in combination with this device, fall within the scope of one or more of the patents relating to this device.

End TIdal Carbon Dioxide (EtCO2)

EtCO2 Indications for Use

Attaching the CAPNOSTAT 3 Sensor Cable

The ZOLL M Series EtCO2 option is indicated for the continuous noninvasive monitoring of end tidal carbon dioxide (EtCO2) and respiration rate in patients requiring ventilator support, transport, or anesthesia. The M Series EtCO2 option with Respironics Novametrix technology supports two methods for continuous measurement of end tidal carbon dioxide (EtCO2) and respiration rate.

To attach the CAPNOSTAT 3 sensor cable, plug the cable into the CO2 connector at the back of the M Series unit.

The first method uses the CAPNOSTAT 3 Mainstream CO2 Sensor attached to an airway adapter that connects to an endotracheal tube, mask or disposable mouthpiece. The second method uses the LoFlo Sidestream CO2 Module to monitor both non-intubated and intubated patients using specially designed sampling cannulae and airway adapters. The M Series EtCO2 option is designed to monitor adult, pediatric, and neonatal patients. The following substances can influence CO2 measurements made with the CAPNOSTAT 3 Sensor:

• • •

elevated oxygen levels nitrous oxide halogenated agents

The M Series EtCO2 option allows the user to enable high oxygen and/or nitrous oxide compensation. Halogenated anesthetic agents alter CO2 readings, but the M Series unit will monitor CO2 within specifications when these agents are present at normal clinical levels. The presence of Desflurane in the exhaled breath beyond normal values (5-6%) may positively bias measured carbon dioxide values by up to an additional 2-3 mmHg.

Note Effective with M Series software revision 38.35 and M Series CCT software revision 57.50, the “0” and “REF” cells on the sensor cable are no longer used. However, they remain on the sensor cable for backwards compatibility with earlier versions of the software.

Selecting a Mainstream Airway Adapter Select an airway adapter based on the patient's size, ET tube diameter and monitoring situation. For more information refer to the following table or contact ZOLL Medical Corporation. Airway Adapter Type

ET Tube Diameter

SPU Pediatric/Adult

> 4.0 mm

Adult Reusable

> 4.0 mm

SPU Neonatal/Pediatric

≤ 4.0 mm

Neonatal Reusable

≤ 4.0 mm

*SPU = Single Patient Use

Attaching the Airway Adapter to the CAPNOSTAT 3 Sensor Before attaching the airway adapter to the CAPNOSTAT 3 sensor, verify that the airway adapter windows are clean and dry. Clean or replace the adapter if necessary.

The M Series EtCO2 option is intended for use only with the ZOLL/Respironics Novametrix CAPNOSTAT 3 Mainstream CO2 sensor and the LoFlo Sidestream CO2 Module, mainstream airway adapters, nasal and nasal/ oral sampling cannulae, and sidestream on-airway adapters.

CAUTION! The disposable (SPU) Pediatric/Adult and the Neonatal/Pediatric airway adapters are intended for single patient use. Do NOT reuse or sterilize these adapters as system performance will be compromised.

Mainstream EtCO2 Setup

1. Attach the airway adapter to the CAPNOSTAT 3 sensor, as follows:

There are several steps involved with mainstream EtCO2 setup, as follows:

• • • • • •

Attaching the CAPNOSTAT 3 sensor cable. Selecting a mainstream airway adapter. Attaching the airway adapter to the CAPNOSTAT 3 sensor. Zeroing the mainstream sensor/airway adapter. Attaching the airway adapter to the airway circuit. Applying an airway adapter with mouthpiece.

a. Align the arrow on the bottom of the airway adapter with the arrow on the bottom of the CAPNOSTAT 3. b. Press the sensor and airway adapter together until they click. 2. If the unit displays the “CHECK CO2 ADAPTER” message, follow steps a through c, or else go to step 3. a. Verify proper connection of the adapter to the sensor. b. Verify that the airway adapter windows are clean and dry.

EtCO2 - 5

M SERIES OPERATOR ’S GUIDE - OPTION INSERT c. If the adapter is properly connected, and the windows are clean and dry, then zero the adapter as described in the next section, "Zeroing the Mainstream Sensor/Airway Adapter". 3. Turn the Selector switch on the M Series unit to MONITOR (ON for AED units). 4. Wait for the airway adapter and sensor to warm up. The unit will display a “WARM UP” message for approximately one minute while the sensor and adapter warm to operating temperature. The message disappears when the sensor is ready to use. Note Warm-up time varies with ambient temperature of the sensor.

Zeroing the Mainstream Sensor/Airway Adapter Adapter zeroing compensates for the optical differences between airway adapters and should be performed after switching between different airway adapter types, in order to obtain accurate readings. Zeroing is also necessary the first time a particular CAPNOSTAT 3 sensor is connected to the unit. The M Series unit retains the CAPNOSTAT 3 sensor's zero settings during and after its use. When a previously used sensor is reconnected to the M Series unit, sensor zeroing does not need to be repeated, as long as no other CAPNOSTAT 3 sensor or adapter type has been connected and zeroed during the interim period. 1. Place the sensor with the adapter installed away from all sources of CO2 (including the patient's – and your own – exhaled breath and ventilator exhaust valves).

displayed. If this occurs, clear any occlusion in the adapter, remove the source of CO2, wait 20 seconds, and try zeroing again.

Attaching the Airway Adapter to the Airway Circuit If you have not yet done so, you must attach the airway adapter to the CAPNOSTAT 3 sensor before attaching the airway adapter to the airway circuit. Refer to "Attaching the Airway Adapter to the CAPNOSTAT 3 Sensor" on page 5 if necessary. Attach the airway adapter to the airway circuit as follows: 1. Place the CAPNOSTAT 3/airway adapter assembly at the proximal end of the airway circuit between the elbow and the ventilator circuit wye. Do NOT place the airway adapter between the ET tube and the elbow, as this may allow patient secretions to accumulate in the adapter. Position the airway adapter with its windows in a vertical, NOT a horizontal, position. This helps keep patient secretions from pooling on the windows. If pooling does occur, the airway adapter may be removed from the circuit, rinsed with water and reinserted into the circuit. To prevent moisture from draining into the airway adapter, do NOT place the airway adapter in a gravity dependent position. See Figures 1 and 2.

#!0./34!4  #/ 3ENSOR 4O 6ENTILATOR

2. Press the Param. softkey and select the EtCO2 menu item, then press Enter. 3. Press the Zero softkey until the Start menu item is highlighted, then press Enter.

%LBOW

7YE 2EUSABLE !DULT !IRWAY !DAPTER

The unit zeroes the adapter and displays the "ZEROING CO2 ADAPTER" message for approximately 15 seconds. The unit displays the message “ZERO DONE” upon completion of the zeroing. Note Do not attempt zeroing for 20 seconds after removing the adapter from the patient’s airway. This time allows any CO2 remaining in the adapter to dissipate before zeroing. Do not attempt to zero the adapter while it is in the patient’s airway. Zeroing with CO2 in the adapter can lead to inaccurate measurement and/or other error conditions. If you attempt zeroing while CO2 remains in the adapter, the time required to zero the adapter may be increased. If zeroing cannot be completed, the message “ZERO FAILED” will be

EtCO2 - 6

4O 0ATIENT

Figure 1

End TIdal Carbon Dioxide (EtCO2)

#!0./34!4  #/ 3ENSOR

#!0./34!4  #/ 3ENSOR

4O 0ATIENT 6ENTILATOR 7YE

!IRWAY !DAPTER $ISPOSABLE .EONATAL !IRWAY !DAPTER

-OUTHPIECE

Figure 2 4O 0ATIENT

2. Check that connections have been made correctly by verifying the presence of a proper CO2 waveform on the M Series display. 3. The sensor cable should face away from the patient. To secure the sensor cable safely out of the way, attach Sensor Cable Holding Clips to the airway tubing, then connect the sensor cable to the clips.

Figure 3 3. If the unit displays the “CHECK CO2 ADAPTER” message, follow steps a through c, else go to step 4. a. Verify proper connection of the adapter to the sensor. b. Verify that the airway adapter windows are clean and dry.

Applying an Airway Adapter with Mouthpiece The disposable Pediatric/Adult airway adapter with mouthpiece can be used for spot checking CO2 on non-intubated adult or pediatric patients. CAUTION! The disposable Pediatric/Adult Airway Adapter with mouthpiece is intended for single patient use. Do NOT reuse or sterilize the adapter, as system performance will be compromised. 1. Remove adapter with mouthpiece from the package. Verify that the adapter and mouthpiece are intact and securely fastened to each other. 2. Attach the airway adapter to the CAPNOSTAT 3 sensor, as follows: a. Align the arrow on the bottom of the airway adapter with the arrow on the bottom of the CAPNOSTAT 3. b. Press the sensor and airway adapter together until they click (see Figure 3).

c. If the adapter is properly connected, and the windows are clean and dry, then zero the adapter as described in "Zeroing the Mainstream Sensor/ Airway Adapter" on page 6. 4. Ensure the patient seals his or her mouth completely around the mouthpiece and breathes normally. Note A nose clip may be needed if the patient is exhaling through the nose. It is important that all, or most, of the exhalation be routed through the airway adapter.

Sidestream EtCO2 Setup There are several steps involved with sidestream EtCO2 setup, as follows:

• •

Selecting a Sidestream Airway Adapter Kit or Cannula

• • •

Zeroing the LoFlo CO2 Module

Attaching the LoFlo Module Cable and Inserting the Sample Cell Applying a Sidestream Airway Adapter Kit Applying a Nasal or Nasal/Oral Cannula

Selecting a Sidestream Airway Adapter Kit Select an airway adapter kit based on the patient's size, ET tube diameter, and monitoring situation. Airway adapter kits are disposable and single patient use. Airway Adapter Kit

ET Tube Diameter

Adult/Pediatric Airway Adapter Kit

> 4.0 mm

Adult/Pediatric Airway Adapter Kit with Nafion® tubing

EtCO2 - 7

M SERIES OPERATOR ’S GUIDE - OPTION INSERT Airway Adapter Kit

ET Tube Diameter

Pediatric/Infant Airway Adapter Kit

≤ 4.0 mm

Pediatric/Infant Airway Adapter Kit with Nafion tubing

3. Insert the LoFlo sample cell into the LoFlo sample cell receptacle and ensure that it clicks into place. Sample Cell Module Cable

Note For monitoring times exceeding 6 hours, Nafion tubing is recommended.

Sample Cell Receptacle Exhaust Tube

Selecting a Sidestream Cannula Select a sidestream cannula based on the patient's size and monitoring situation. Nasal and nasal/oral cannulae are disposable and single patient use. Cannula

Application

Nasal CO2 Sampling Cannula, Adult

Nasal CO2 sampling only

Nasal CO2 Sampling Cannula, Pediatric

Oral/Nasal CO2 sampling only

Oral/Nasal CO2 Sampling Cannula, Pediatric Nasal CO2 Sampling with O2 Delivery Nasal CO2 Cannula, Adult sampling with oxygen delivery Nasal CO2 Sampling with O2 Delivery Cannula, Pediatric Oral/Nasal CO2 Sampling with O2 Delivery Cannula, Adult Oral/Nasal CO2 Sampling with O2 Delivery Cannula, Pediatric

Figure 4 4. Ensure that the LoFlo module exhaust tube vents gasses away from the module environment. 5. Turn the selector switch on the M Series to MONITOR (ON for AED units). 6. Wait for the CO2 module to warm up.

Nasal CO2 Sampling Cannula, Infant Oral/Nasal CO2 Sampling Cannula, Adult

LoFlo Module

Oral/Nasal CO2 sampling with oxygen delivery

Attaching the LoFlo Module Cable and Inserting the Sample Cell Follow these steps: 1. Attach the LoFlo module cable to the CO2 connector at the back of the M Series unit. 2. Remove the LoFlo sampling cannula or airway adapter kit from the package.

The unit will display the "WARM UP" message for approximately one minute while the module and accessory warm to operating temperature. The message disappears when the module is ready for use. Note Warm up time varies with ambient temperature of the module.

Zeroing the LoFlo CO2 Module The first time a particular LoFlo module is connected to the M Series, the unit displays the message “ZERO CO2 MODULE” following the warm up period. The unit retains the LoFlo module zero settings during and after its use. When the previously used module is reconnected to the M Series unit, module zeroing does not have to be repeated, as long as no other LoFlo module has been connected and zeroed during the interim period. Note After the initial zero procedure, the LoFlo module may be used during the warm up period. The capnogram, EtCO2, and respiratory rate will be displayed; however, full product specifications are not achieved until the warm up period has completed. CAUTION! Always ensure that the sample cell is properly connected to the LoFlo module before zeroing. 1. Ensure that the nasal cannula or on-airway adapter is not connected to the patient or close to any source of CO2 (including the patient's -- and your own -exhaled breath and ventilator exhaust valves).

EtCO2 - 8

End TIdal Carbon Dioxide (EtCO2) 2. Press the Param. softkey and select the EtCO2 menu item, then press Enter. 3. Press the Zero softkey until the Start menu item is highlighted, then press Enter. The unit zeros the module and displays the "ZEROING CO2 MODULE" message for approximately 15 seconds.

If you see this message:

Take this action:

CHECK CO2 LINE

Verify that the sample cell is plugged into the module and seated properly. Verify that neither the sample line nor the exhaust tube are blocked, kinked, or pinched. Verify that the airway adapter is not blocked. If the sample line, exhaust tube, or the airway adapter is blocked or otherwise compromised, the pump shuts off in approximately 15 seconds. To restart the pump, correct the blockage, then remove and reinsert the sample cell into the sample cell receptacle.

The units displays the message “ZERO DONE” upon completion of the zeroing. Note Do not attempt zeroing for 20 seconds after removing the adapter or cannula from the patient’s airway. This time allows any CO2 remaining in the adapter or cannula to dissipate before zeroing. Do not attempt to zero the module while the adapter or cannula is in the patient’s airway. Zeroing with CO2 in the adapter or cannula can lead to inaccurate measurements and/or other error conditions. If you attempt zeroing while CO2 remains in the adapter or cannula, the time required to zero the module may be increased. If zeroing cannot be completed, the message “ZERO FAILED” will be displayed. If this occurs, clear any occlusion in the adapter or cannula, remove the source of CO2, wait 20 seconds, and try zeroing again.

Applying a Sidestream Airway Adapter Kit The sidestream airway adapter kit is intended for monitoring the EtCO2 of intubated patients. Before attaching the airway adapter to the breathing circuit, verify that the adapter is clean, dry, and undamaged. Replace if necessary. CAUTION! The disposable (SPU) Adult/Pediatric and Pediatric/Infant airway adapter kits are intended for single patient use. Do NOT reuse or sterilize these adapters as system performance will be compromised.

If the problem persists, replace the sample line. CHECK CO2 MODULE

Check that module cable is plugged in and seated properly. Check that module is not exposed to excessive heat. If problem persists, replace module.

3. Place the airway adapter assembly at the proximal end of the airway circuit between the elbow and the ventilator circuit wye. Do NOT place the airway adapter between the ET tube and the elbow as this may allow patient secretions to accumulate in the adapter. If pooling does occur, the airway adapter may be removed from the circuit, rinsed with water and reinserted into the circuit. To prevent moisture from draining into the sample tubing, ensure that the sampling tube exits from the top of the airway adapter, not its bottom or sides. See Figure 5.

Sampling Tube

1. Attach the airway adapter kit’s sample cell to the sample cell receptacle on the LoFlo module, and ensure that it clicks into place. 2. If the unit displays either of the following messages take the appropriate action.

Figure 5 4. Check that connections have been made correctly by verifying the presence of a proper capnogram on the M Series display.

Applying a Nasal or Nasal/Oral Cannula The nasal and nasal/oral cannulae are intended for monitoring EtCO2 in non-intubated patients. Oral/nasal sampling cannulae should be used on patients who are prone to mouth breathing, since most (if not all) of the CO2 is exhaled through the mouth. If a

EtCO2 - 9

M SERIES OPERATOR ’S GUIDE - OPTION INSERT standard nasal CO2 sampling cannula is used on such patients, the EtCO2 values and capnogram waveform displayed will be substantially lower than the actual CO2 levels present in the patient’s expired breath.

5. If necessary, cut the oral portion of the oral/nasal cannula (if you are using an the oral/nasal cannula) to an appropriate length to adequately fit the patient, as follows: a. Place the cannula onto the patient as shown in Figure 7.

CAUTION! The disposable Nasal and Nasal/Oral Cannulae are intended for single patient use. Do NOT reuse or sterilize the cannula, as system performance will be compromised. 1. Remove the cannula from the package. Verify that the cannula is clean, dry, and undamaged. Replace if necessary. 2. Attach the cannula’s sample cell to the sample cell receptacle on the LoFlo module, and ensure that it clicks into place.

Figure 7 b. Observe the length of the oral cannula tip. It should extend down past the teeth and be positioned in the mouth opening (see Figure 7).

3. If the unit displays either of the following messages take the appropriate user action.

CAUTION! To avoid injury to the patient, remove the cannula from the patient before you cut the oral cannula tip.

If you see this message:

Take this action:

CHECK CO2 LINE

Verify that the sample cell is plugged into the module and seated properly. Verify that neither the sample line nor the exhaust tube are blocked, kinked, or pinched. Verify that the airway adapter is not blocked. If the sample line, exhaust tube, or the airway adapter is blocked or otherwise compromised, the pump shuts off in approximately 15 seconds. To restart the pump, correct the blockage, then remove and reinsert the sample cell into the sample cell receptacle. If the problem persists, replace the sample line.

CHECK CO2 MODULE

Check that module cable is plugged in and seated properly. Check that module is not exposed to excessive heat. If problem persists, replace module.

4. Place the nasal cannula onto the patient as shown in Figure 6.

c. Trim to the appropriate length.

Cleaning the CAPNOSTAT 3 Sensor and LoFlo Module The CAPNOSTAT 3 sensor and LoFlo module (and rubber protective covering) can be cleaned and disinfected by wiping with one or more of the following solutions:

• • •

70% isopropyl alcohol 2% gluteraldehyde 10% bleach solution

Use a soft cloth dampened with one of the above listed solutions to clean the sensor or module. After cleaning, wipe with a clean, water-dampened cloth to rinse. Dry before use. Note Do not immerse or attempt to sterilize the CAPNOSTAT 3 sensor or LoFlo module.

Cleaning Reusable Airway Adapters Reusable airway adapters may be cleaned by rinsing in a warm soapy solution, followed by soaking in a liquid disinfectant such as Cidex® or System 1® (refer to the disinfectant manufacturer's instructions for use). Adapters should then be rinsed with sterile water and dried. Reusable airway adapters may also be pasteurized or autoclaved. Autoclave at 121° C (250° F) for 20 minutes, unwrapped.

Figure 6

EtCO2 - 10

End TIdal Carbon Dioxide (EtCO2) Before reusing the adapter, ensure the windows are dry and residue-free, and that the adapter has not been damaged during handling or by the cleaning process.

Pressing the Wave2 softkey from the physiological monitoring menu cycles the display from the capnogram waveform, to the plethysmograph waveform (if SpO2 is installed), to no second waveform displayed.

How EtCO2 is Displayed

Use the Zoom softkey from the EtCO2 submenu to adjust the waveform display size. Numbers shown on the left side of the capnogram display indicate the scaling.

The M Series unit displays the numeric EtCO2 value in units of mmHg, unless configured for percent or kPa. Refer to the M Series Configuration Guide (Part No. 9650-0201-01) for instructions on how to configure alternate units of measure. The unit also displays the number of breaths per minute, labeled "RR" for respiration rate. In addition, a capnogram waveform may be displayed using the Wave2 softkey. Monitor the capnogram for an elevated baseline. If an elevated baseline is observed, verify patient condition first. If you determine that the patient’s condition is not contributing to the elevated baseline, follow the instructions for zeroing the CAPNOSTAT 3 sensor or LoFlo module, as described in this insert.

Displaying the Capnogram Waveform

With EtCO2 monitoring, the unit can display a capnogram waveform below the ECG trace for a visual indicator of the moment-by-moment CO2 values. The unit displays the capnogram waveform at half the speed of the ECG display, and provides 8 seconds of data.

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Pressing the Select softkey scrolls the highlighted area among the different available physiological parameters. Pressing the Enter softkey allows the user to select the parameter that is highlighted. Pressing the Return softkey allows the user to return to the physiological monitoring menu. Selecting the EtCO2 parameter causes the following softkeys to appear: Zero, Average, Comp., Zoom, and Return. Note that the Zoom softkey is only displayed if the capnograph waveform is also displayed. =HUR

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Adapter zeroing should be performed whenever the airway adapter type has been changed. Adapter zeroing may also be necessary if the unit displays "CHECK CO2 ADAPTER." Module zeroing may be necessary if the unit displays the message “ZERO CO2 MODULE.”

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The unit temporarily removes the second waveform from the display when the user presses the CHARGE, ANALYZE, or ENERGY SELECT buttons, or the Sync On/Off softkey. The unit restores the second waveform to the display:

• •

When the Param softkey is pressed, the following softkeys will be displayed: Select, Enter, and Return.

Zero Softkey



• •

Param Softkey

Pressing “Return” softkey returns the user to the physiological monitoring menu.

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The physiological monitoring menu includes the following softkeys: Param, Wave2, ID#, Alarms, and 12 Lead.

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The M Series unit can display one or two waveforms in Monitor, Defib, or Manual (AED) mode, as long as the defibrillator is not charging or ECG analysis is not in progress. The unit displays only one waveform in Pacer mode.

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3 seconds after a shock is delivered 3 seconds after an analysis is completed, unless the defibrillator is charging 4 seconds after the last Energy Select button press 3 seconds after Sync mode is turned off

EtCO2 - 11

Note Do not attempt zeroing for 20 seconds after removing the adapter or cannula from the patient’s airway. This time allows any CO2 remaining in the adapter or cannula to dissipate before zeroing. Do not attempt to zero while the adapter or cannula is in the patient’s airway. Zeroing with CO2 in the adapter or cannula can lead to inaccurate measurements and/or other error conditions. If you attempt zeroing while CO2 remains in the adapter or cannula, the time required to zero may be increased. If zeroing cannot be completed, the message “ZERO FAILED” will be displayed. If this

M SERIES OPERATOR ’S GUIDE - OPTION INSERT occurs, clear any occlusion in the adapter or cannula, remove the source of CO2, wait 20 seconds, and try zeroing again. Pressing the Zero softkey causes the start/cancel menu to appear. Pressing the Zero softkey again toggles the highlight between Start and Cancel.

of oxygen in the breathing circuit exceeds 60% and nitrous oxide is in use, both O2 and N2O should be activated. When the Comp softkey is pressed, the unit displays the Comp., Enter, and Return softkeys. 1RQH 2 12 2 12

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Pressing the Enter softkey with Start highlighted initiates zeroing of the adapter or module. The unit displays the "ZEROING CO2 ADAPTER" or "ZEROING CO2 MODULE" message during the zeroing process, which is typically finished in 15 seconds. The unit displays the “ZERO DONE” message when the zeroing process is complete. The unit displays the “ZERO FAILED” message if the zeroing process did not complete successfully. If this occurs, clear any occlusion in the adapter or sample line, remove the source of CO2, and try zeroing again. The Cancel selection halts the adapter zeroing process. Pressing Enter allows the user to enter the highlighted selection. Pressing Return returns the user to the EtCO2 submenu.

Average Softkey The M Series unit provides three (3) different time periods over which EtCO2 values are averaged: 1 breath, 10 seconds (default), and 20 seconds. The user can select the averaging period by pressing the Average softkey. When the Average softkey is pressed, the unit displays the Average, Enter, and Return softkeys. EUHDWK VHFV VHFV

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Pressing the Average softkey scrolls the highlighted area among the different averaging periods of 1 breath, 10 seconds, and 20 seconds. Pressing the Enter softkey allows the user to select the highlighted averaging period. Pressing the Return softkey returns the user to the EtCO2 submenu.

Comp Softkey The M Series unit can compensate for elevated levels of oxygen and/or the presence of nitrous oxide. Oxygen compensation should be activated when oxygen levels in excess of 60% are present in the airway circuit. Nitrous oxide compensation should be activated when nitrous oxide is present in the airway circuit. If the concentration EtCO2 - 12

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Pressing the Comp. softkey scrolls the highlight among the different types of compensation available (either NONE, O2, N2O, or O2 & N2O). The O2&N2O selection turns oxygen and nitrous oxide compensation on. The unit displays two asterisks (*) on the left side of the CO2 field to indicate compensation for both oxygen and nitrous oxide. The left asterisk indicates oxygen compensation is active and the right asterisk indicates nitrous oxide compensation is active. The O2 selection turns oxygen compensation on and displays an asterisk in the far left of the CO2 field. The N2O selection turns nitrous oxide compensation on and displays an asterisk to the right of the O2 asterisk. The NONE selection turns all compensations off and eliminates the asterisks from the display. After selecting the appropriate compensation press Enter to activate the selected function. Pressing the Return softkey returns the user to the EtCO2 submenu.

Zoom Softkey The user can select the zoom level for capnogram waveforms by pressing the Zoom softkey. When the Zoom softkey is pressed, the scale for the displayed capnogram waveform scrolls among zoom levels:

• • • • •

0-12.5 mmHg 0-25 mmHg 0-50 mmHg 0-75 mmHg 0-100 mmHg

The scales are 0-1.7, 0-3.3, 0-6.6, 0-10, and 0-13.3 if units of kPa or % have been configured. (Refer to the M Series Configuration Guide for instructions on how to configure alternate units of measure.)

Alarms The M Series EtCO2 option provides user programmable "out of range" alarms for both EtCO2 and respiration rate. See "Default Settings" on page 15 for low and high alarm limit default values and ranges. The EtCO2 and respiration rate alarms share the same State field in the Alarms Menu and cannot be enabled or disabled separately. Enabling the EtCO2 alarms enables both EtCO2 and respiration rate alarm functions;

End TIdal Carbon Dioxide (EtCO2) disabling EtCO2 or respiration rate alarms disables the other alarm function. See the M Series Operator’s Guide for details on enabling, disabling, and suspending alarm functions on the M Series unit. When the EtCO2 and respiration rate alarm states are set to AUTO, the unit automatically sets the lower and upper limits for EtCO2 and respiration rate. For EtCO2, the limits will be set to +/- 25% of the patient's currently measured EtCO2 value. If the EtCO2 value is greater than 40 mmHg (which is equivalent to 5.3kPa or 5.3% at a barometric pressure of 760 mmHg), then 10 mmHg (1.3 for kPa or %) will be added and subtracted from the current reading to set the upper and lower limits. The auto alarm limits are set only if valid measurements are present for the vital sign. For the automatic respiration rate alarm limits, the unit sets the upper and lower limits for respiration by adding and subtracting the values shown in the following table to/from the patient's current breath rate. Respiration Limits (Auto) Respiration Rate Average

High Limit

Low Limit

1-15 breaths/min.

+7 breaths/min.

-50% value

16-40 breaths/min.

+10 breaths/min.

-7 breaths/min.

> 40 breaths/min.

+15 breaths/min.

-10 breaths/min.

Recorder Operation If EtCO2 measurements have been taken, press the RECORDER button to print a stripchart that includes the following values across the top part of the paper:

• • • • •

date and time ECG lead and size heart rate EtCO2 value respiration rate

The recorder runs continuously until the button is pressed again. If displayed on the screen, the capnogram waveform will also be printed under the ECG trace. All waveforms printed by the recorder are delayed by six seconds relative to their occurrence.

Automated External Defibrillator (AED) Operation M Series AED units equipped with the EtCO2 option operate in a slightly different way than Manual and Advisory models equipped with EtCO2, as outlined below.

Semi-Automatic Operation The EtCO2 monitoring parameters can be changed by pressing the Param softkey, as outlined in "Physiological

EtCO2 - 13

Monitoring" on page 11. The capnogram waveform cannot be displayed in semi-automatic mode. Although EtCO2 alarm functions are operational in semi-automatic mode, heart rate alarm functions are disabled. Background ECG analysis functions continue to operate as described in the “AED” section of the M Series Operator’s Guide. The ALARM SUSPEND button can be used to activate, deactivate, or audibly disable the EtCO2 alarms (as described in the M Series Operator’s Guide). The alarm limit settings cannot, however, be changed in semi-automatic mode; only the default alarm limits are available. See the M Series Configuration Guide for information on setting alarm limit defaults.

Manual Mode Operation When the AED unit is in manual mode, the unit can display the capnogram waveform as described in "Displaying the Capnogram Waveform" on page 11. Both heart rate and EtCO2 alarms are operational. The alarm limits can be changed by pressing the Alarms softkey. The EtCO2 monitoring parameters can be changed by pressing the Param softkey, as outlined in "Physiological Monitoring" on page 11.

Check Out Procedures The following procedures verify that the EtCO2 option is functioning properly.

Mainstream EtCO2 (CAPNOSTAT 3 Sensor) 1. Connect the CAPNOSTAT 3 sensor cable to the EtCO2 connector at the back of the M Series unit. 2. Connect an airway adapter to the sensor. 3. Turn the selector switch to MONITOR mode (ON for AED units and select Manual Mode). 4. Wait for the CO2 sensor to warm up. The message "WARM UP" is displayed for approximately one minute. 5. Perform a zero procedure if necessary (see "Zeroing the Mainstream Sensor/Airway Adapter" on page 6). 6. Breath normally into the adapter. 7. Verify that the unit displays EtCO2 readings in the EtCO2 display area of the monitor. 8. Verify the capnogram waveform is displayed by pressing the Wave2 softkey.

Sidestream EtCO2 (LoFlo Module) Use an Adult/Pediatric Airway Adapter when performing this procedure. 1. Connect the LoFlo module cable to the EtCO2 connector at the back of the M Series unit. 2. Insert the adapter sample cell into the LoFlo module sample cell receptacle. 3. Turn the selector switch to MONITOR mode (ON for AED units and select Manual Mode), and wait

M SERIES OPERATOR ’S GUIDE - OPTION INSERT approximately one minute while the module warms to operating temperature (unit displays “WARM UP” message). 4. Perform a zero procedure if necessary (see "Zeroing the LoFlo CO2 Module" on page 8). 5. Breath normally into the adapter. 6. Verify that the unit displays EtCO2 readings in the EtCO2 display area of the monitor. 7. Verify the capnogram waveform is displayed by pressing the Wave2 softkey.

EtCO2 - 14

End Tidal Carbon Dioxide (EtCO2)

Default Settings When the unit is turned on, the following default EtCO2 settings are automatically selected and remain in operation until changed. Parameter

Default Setting

Range

Averaging Mode

10 seconds

1 breath 10 seconds 20 seconds

High EtCO2 Alarm Limit

55 mmHg 7.2% 7.3 kPa

5 - 100 mmHg, OFF 0.6 - 13.1%, OFF 0.6 -13.3 kPa, OFF

Low EtCO2 Alarm Limit

25 mmHg 3.2% 3.3 kPa

0 - 95 mmHg, OFF 0 - 12.5%, OFF 0 -12.6 kPa, OFF

High Respiration Rate Alarm Limit

120 respirations per min.

5 - 150 respirations per min., OFF

Low Respiration Rate Alarm Limit

5 respirations per min.

0 - 100 respirations per min., OFF

Note The power on default settings for the capnogram waveform scale and CO2 compensation are set in System Configuration, as are the power-on default settings for alarm limits. See the M Series Configuration Guide for more information.

EtCO2 Accessories The following tables list the accessories available for the M Series Mainstream and Sidestream EtCO2 monitoring options.

Table 1: CAPNOSTAT 3 Mainstream CO2 Accessories Accessory (ZOLL Reorder Part Number)

Application

CAPNOSTAT 3 CO2 Sensor and Cable (8000-0264-01) Sensor Cable Holding Clips, bag of 5 (8000-0266-01) SPU Pediatric/Adult Airway Adapter (8000-0260-01)

Single patient use, for ET tube sizes > 4.0 mm

SPU Neonatal/Pediatric Airway Adapter (8000-0261-01)

Single patient use, for ET tube sizes ≤ 4.0 mm

Reusable Adult Airway Adapter (8000-0262-01)

Reusable, for ET tube sizes > 4.0 mm

Reusable Neonatal/Pediatric Airway Adapter (8000-0263-01)

Reusable, for ET tube sizes ≤ 4.0 mm

SPU Pediatric/Adult Airway Adapter with Mouthpiece (8000-0265-01)

Single patient use, for non-intubated patients

Capno2mask, Large Adult (8000-0761)

SPU, for non-intubated large adults

Capno2mask, Standard Adult (8000-0760)

SPU, for non-intubated adults

Capno2mask, Pediatric (8000-0762)

SPU, for non-intubated adults pediatric patients

* SPU = Single Patient Use

EtCO2 - 15

Table 2: LoFlo Sidestream CO2 Accessories Accessory (ZOLL Reorder Part Number)

Application

LoFlo Module and Cable (8000-0365) Nasal CO2 Sampling Cannula, Adult (8000-0351)

SPU, Nasal CO2 sampling only (adult)

Nasal CO2 Sampling Cannula, Pediatric (8000-0352)

SPU, Nasal CO2 sampling only (pediatric)

Nasal CO2 Sampling Cannula, Infant (8000-0353)

SPU, Nasal CO2 sampling only (neonate)

Oral/Nasal CO2 Sampling Cannula, Adult (8000-0354)

SPU, Oral/Nasal CO2 sampling only (adult)

Oral/ Nasal CO2 Sampling Cannula, Pediatric (8000-0355)

SPU, Oral/Nasal CO2 sampling only (pediatric)

Nasal CO2 Sampling with O2 Delivery Cannula, Adult (8000-0356)

SPU, Nasal CO2 sampling with O2 delivery (adult)

Nasal CO2 Sampling with O2 Delivery Cannula, Pediatric (8000-0357)

SPU, Nasal CO2 sampling with O2 delivery (pediatric)

Oral/Nasal CO2 Sampling with O2 Delivery Cannula, Adult (8000-0358)

SPU, Oral/Nasal CO2 sampling with O2 delivery (adult)

Oral/Nasal CO2 Sampling with O2 Delivery Cannula, Pediatric (8000-0359)

SPU, Oral/Nasal CO2 sampling with O2 delivery (pediatric)

Adult/Pediatric Airway Adapter Kit (8000-0362)

SPU, for ET tube sizes > 4.0 mm

Adult/Pediatric Airway Adapter Kit with Nafion tubing (8000-0363)

SPU, for ET tube sizes > 4.0 mm

Pediatric/Infant Airway Adapter Kit (8000-0361)

SPU, for ET tube sizes ≤ 4.0 mm

Pediatric/Infant Airway Adapter Kit with Nafion tubing (8000-0364)

SPU, for ET tube sizes ≤ 4.0 mm

* SPU = Single Patient Use Note Components of this product and its associated EtCO2 accessories that make patient contact are free of latex. Note: The CAPNOSTAT 3, LoFlo and its accessories are covered by the following US patents: • 4,859,858 • 5,146,092 • 5,369,277 • 4,859,859 • 5,153,436 • 5,616,923 • 4,914,720 • 5,206,511 • 5,693,944 • 4,958,075 • 5,251,121 • 5,793,044 Other patents pending.

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End Tidal Carbon Dioxide (EtCO2)

Messages and Troubleshooting The following three tables list the common (occur for both mainstream and sidestream), mainstream, and sidestream messages that may appear on the M Series unit, possible causes, and the action(s) to take if the message indicates a problem. You should become thoroughly familiar with this information before monitoring patients. COMMON MESSAGES Message/Symptom

Possible Cause(s)

----- (dashed lines in EtCO2 field) After a defibrillation discharge, the numeric value displays as “----” for approximately 10 seconds.

Recommended Action(s) None, normal operation.

When the respiration rate is zero, the numeric CO2 value will display “---”. When the respiration rate is greater than zero, the actual CO2 numeric value will be displayed. ----- (dashed lines at top of capnogram waveform)

Scale value setting incorrect. Measured CO2 higher than scale limits.

Adjust to higher scale setting using the Zoom key.

CO2 COMM ERROR

No communication from the EtCO2 module or sensor.

Turn M Series unit off, then on again to reset. If problem persists, return for service.

CO2 DEVICE NOT READY

The zero operation cannot be initiated because: •

The sensor or module is still warming up.

•

No sensor or module is attached to the unit.

Wait for sensor or module to warm up. Attach sensor or module to the unit.

CO2 OUT OF RANGE (dashed lines for CO2)

Calculated CO2 value is greater than 100 mmHg.

If error persists, perform an adapter or module zero

CO2 UNIT ERROR

Defective EtCO2 module or sensor.

Turn M Series unit off, then on again to reset. If problem persists, contact Technical Support.

INVALID CO2 DEVICE

CAPNOSTAT 3 sensor or LoFlo Module is not responding to the M Series unit.

Turn M Series unit off, then on again to reset. Try another sensor/module. If problem persists, contact Technical Support.

Mainstream sensor or LoFlo sidestream module is warming up. This may take up to 5 minutes.

Wait for sensor or module to warm up (max 5 minutes).

ZERO DONE

The mainstream sensor or adapter zero, or the LoFlo module zero, is finished.

No action required.

ZERO FAILED

The zero operation did not complete successfully.

Clear occlusion, remove source of CO2, and try zeroing again. If problem persists, contact Technical Support.

WARM UP

EtCO2 - 17

If message persists more than 5 minutes, replace the sensor, or module.

MAINSTREAM MESSAGES Message/Symptom

Possible Cause(s)

Recommended Action(s)

Sensor not responding to breaths. CO2 waveform always at 0 mmHg with no messages displayed.

Sensor/Adapter was zeroed with a low level Perform a mainstream airway adapter zero as described in "Zeroing the Mainstream of residual CO2 in the adapter. CO2 Sensor/Airway Adapter" on page 6. baseline is set below 0 mmHg.

or CO2 waveform baseline > 25 mmHg with no messages displayed.

Airway adapter type was changed with unit powered off. New sensor/adapter combination has not been zeroed.

CHECK CO2 ADAPTER displayed during each inhalation. Message disappears during exhalation.

Sensor/Adapter was zeroed with a low level Perform a mainstream airway adapter zero of residual CO2 in the adapter. CO2 as described in "Zeroing the Mainstream Sensor/Airway Adapter" on page 6. baseline is set below 0 mmHg.

CHECK CO2 ADAPTER alternates with ZERO CO2 ADAPTER shortly after breathing stops. CHECK CO2 ADAPTER

Usually caused when the airway adapter is removed from the CAPNOSTAT 3, or when there is an optical blockage on the windows of the airway adapter. May also be caused by not having performed an adapter zero after changing the adapter type.

CHECK CO2 SENSOR

Sensor cable not properly plugged in or over temperature.

Clean airway adapter and reattach it. If the problem persists or the adapter type was changed, perform a mainstream airway adapter zero as described in "Zeroing the Mainstream Sensor/Airway Adapter" on page 6. Check that sensor cable is plugged in and properly seated in the connector. Check that sensor is not exposed to excessive heat. If problem persists, replace sensor.

CO2 IN ADAPTER: WAIT

There is CO2 in the adapter when attempting to zero. Zeroing was attempted within 20 seconds of previous zero operation.

Remove adapter from CO2 source including the patient’s - and your own - exhaled breaths, and ventilator exhaust valves. Wait up to 20 seconds before retrying adapter zero. Replace sensor.

REPLACE CO2 SENSOR

Sensor is defective or incompatible (message appears when “WARM UP’ message is displayed for more than 5 minutes).

USE AIRWAY ADAPTER

CO2 sensor is on the “REF” or “0” cell when Remove CO2 sensor from the “REF” or “0” zeroing is started. cell and attach airway adapter to CO2 sensor.

ZERO CO2 ADAPTER

Sensor cable connected to M Series unit for Perform a mainstream airway adapter zero as described in "Zeroing the Mainstream the first time. Zeroing error or probe drift Sensor/Airway Adapter" on page 6. error detected.

ZEROING CO2 ADAPTER

Adapter zeroing in progress.

EtCO2 - 18

Wait for adapter zeroing to finish.