Monitoring
3-14 LIFEPAK 20 Defibrillator/Monitor Operating Instructions
MONITORING ETCO2
The following paragraphs describe:
• EtCO2 Warnings and Cautions
• How Capnography Works
• EtCO2 Monitoring Waveform Analysis
• EtCO2 Monitoring Procedure
• CO2 Display
• CO2 Alarms
• CO2 Detection
• Cleaning
• Troubleshooting Tips for EtCO2
EtCO2 Warnings and Cautions
6 SPO2: UNKNOWN SENSOR
message appears.
A sensor is connected to the
device that is not a Physio-Control
approved sensor.
• Check that the sensor is an
approved Physio-Control
sensor.
7
SPO2: SEARCHING FOR PULSE
message appears.
A sensor is connected to the
patient and is searching for a
pulse.
• Wait for completion.
8
SPO2: LOW PERFUSION
message appears.
Patient has a weak pulse. • Change sensor location.
WARNINGS!
Fire hazard.
Before use, carefully read these operating instructions, the FilterLine
®
tubing directions for use, and
precautionary information.
Fire hazard.
The FilterLine tubing may ignite in the presence of O2 when directly exposed to laser, electrosurgical
devices, or high heat. Use with caution to prevent flammability of the FilterLine tubing.
Fire hazard.
Flammable anesthetics become mixed with the patient’s air that is sampled by the capnometer. When
using the EtCO2 monitor in the presence of flammable gases, such as nitrous oxide or certain other
anesthetics, connect the EtCO2 gas port to a scavenger system.
Possible inaccurate patient assessment.
The EtCO2 monitor is intended only as an adjunct in patient assessment and is not to be used as a
diagnostic apnea monitor. An apnea message appears if a valid breath has not been detected for 30
seconds and indicates the time elapsed since the last valid breath. It must be used in conjunction with
clinical signs and symptoms.
Table 3-3 Troubleshooting Tips for SpO2 (Continued)
Observation Possible Cause Corrective Action
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