User Manual

Monitoring
3-14 LIFEPAK 20e Defibrillator/Monitor Operating Instructions
Troubleshooting Tips for SpO2
Table 3-3 Troubleshooting Tips for SpO2
Observation Possible Cause Corrective Action
1 The oximeter measures a
pulse, but there is no oxygen
saturation or pulse rate.
Excessive patient motion. • Keep patient still.
• Check that sensor is secure.
• Relocate sensor.
• Replace sensor.
Patient perfusion may be too
low.
• Check patient.
• Increase sensitivity.
2
SpO2 or pulse rate changes
rapidly; pulse amplitude is
erratic.
Excessive patient motion. • Keep patient still.
• Check that sensor is secure.
• Relocate sensor.
• Replace sensor.
• Increase sensitivity.
An electrosurgical unit (ESU)
may be interfering with
performance.
• Move the monitor as far as
possible from the ESU.
• Plug the ESU and monitor
into different circuits.
• Move the ESU ground pad
as close to the surgical site
as possible.
• Sensor may be damp,
replace it.
• Remove sensor extension
cable and connect the
sensor directly.
3 No
SpO2 value is displayed. Oximeter may be performing a
self-test (requires 10 seconds).
• Wait for completion.
4
SPO2: NO SENSOR
DETECTED
message
appears.
Sensor is not connected to
patient or cable disconnects
from device.
• Check that sensor and
cable are connected
properly.
5
SPO2: CHECK SENSOR
message appears.
Sensor is disconnected from
patient or cable.
• Attach the sensor.
• Check that sensor is secure.
Excessive ambient light. • Remove or block light
source if possible.
• Cover sensor with opaque
material, if necessary.
Patient has a weak pulse or
low blood pressure.
• Test sensor on someone
else.
• Check if patient perfusion is
adequate for sensor
location.
• Check if sensor is secure
and not too tight.
• Check that sensor is not on
extremity with blood
pressure cuff or
intravascular line.
• Change sensor location.