GE Portrait Hub01, Руководство пользователя

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Troubleshooting
Problem Solution
If the problem persists, contact qualified service
personnel.
Troubleshooting the SpO
2
and pulse rate
measurements
Problem Solution
SpO
2
signal is poor
●
Check the sensor and sensor position.
●
Check the probe and probe position.
●
Check that the patient is not shivering, moving, or
does not have tremors.
●
The patient's pulse may be too low to measure.
●
The perfusion may be too low. Change sensor site.
SpO
2
or PR value variations are too fast.
●
Contact an authorized clinical user and ask them
to increase the averaging time for SpO
2
or PR in
the Config UI.
SpO
2
or PR value responds too slowly.
●
Contact an authorized clinical user and ask them
to decrease the averaging time for SpO
2
or PR in
the Config UI.
Why does the pulse oximeter sometimes read
differently than a blood gas analyzer? Blood gas analyzers calculate the O
2
saturation based
on normal values for pH, PaCO
2
, Hb, temperature, and
so on (a normal oxyhemoglobin dissociation curve).
Depending on the patient's physiologic and metabolic
status, this curve and all values may be shifted away
from normal. Thus the oximeter, which measures O
2
saturation, may not agree with the blood gas.
What effect can ambient light have on pulse oximetry
monitoring? Light sources such as surgical lamps, bilirubin
lamps, fluorescent lights, infrared heating lamps,
and sunlight can cause poor waveform quality and
inaccurate or erroneous readings. Error messages
are possible. Shielding the sensor with opaque tape,
the posey wrap, or other dark or opaque material
can increase oximetry accuracy, verified by good
waveform and signal strength.
What does electrosurgical interference look like and
how can it be minimized? Electrosurgical interference is most obvious on the
displayed waveform. It is very spiky, erratic looking
waveform caused by the electrosurgical unit's
overwhelming interference. It can result in grossly
inaccurate pulse oximeter results.
Electrosurgical interference can be minimized by:
●
Making sure the pulse oximeter sensor is as far
away from the return pad and operating site as
possible.
●
Making sure the sensor is not between the return
pad and operating site.
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