Physio-Control LIFEPAK 15 - Manual (Page 75)

MONITORING
4
©2007-2013 Physio-Control, Inc. LIFEPAK 15 Monitor/Defibrillator Operating Instructions
4-31
SpCO/SpMet Advisory
If the SpCO or SpMet reading is above normal limits, indicating a dangerous amount of
carboxyhemoglobin or methemoglobin, an Advisory occurs.
During an Advisory:
• The elevated SpCO or SpMet value is displayed instead of SpO
2
.
• The elevated value flashes and the alarm tone sounds.
• One of the following Advisory messages appears in the message area:
Advisory: SpCO > 10%
Advisory: SpMet > 3%
To cancel the Advisory, press ALARMS . The SpO
2
area reverts to the SpO
2
reading. The Advisory
message remains on the screen until the elevated value returns to within normal limits or the device
is turned off.
The Pleth Waveform
You can display the plethysmographic (pleth) waveform in Channel 2 or 3.
To display the pleth waveform:
1. Rotate the SPEED DIAL to outline waveform CHANNEL 2 or 3 .
2. Press the SPEED DIAL . The Channel menu appears.
3. Select WAVEFORM and then select SPO2 . The SpO
2
waveform appears in the selected channel.
The waveform is automatically sized for optimum waveform viewing.
WARNING
INACCURATE SPO
2
READINGS
Carboxyhemoglobin and methemoglobin may erroneously increase SpO
2
readings. The
amount that SpO
2
increases is approximately equal to the amount of
carboxyhemoglobin or methemoglobin that is present.
INACCURATE SPCO AND SPMET READINGS
Very low arterial oxygen saturation levels may cause inaccurate SpCO and SpMET
readings.