Arterial Oxygen Saturation By Pulse Oximeter Measurement (Spo 2 - Cardiac Science 5300 Instruction Manual

Arterial Oxygen Saturation by pulse oximeter measurement
(SpO )
2
Symptom
Measurement not possible
Measurement reading
unreliable
Cardiac Science 5300/5350 Vital Signs Monitor
Cause
Check the patient, as shock, poor peripheral circulation due
•
to low blood pressure or constriction of arteries at sensor
attachment point may be possible causes.
Check to see if sensor has become detached.
•
Check to see if sensor attachment is over tight.
•
• Check to see if the artery catheter and vein line are attached
on the same arm.
• If the sensor is attached to the same arm as the cuff, sensor
measurement will not be possible while cuff measurement
is in progress.
Try checking the following.
When there is fluctuation in the blood other than the pulse,
•
there may be a mistake in the display. Fluctuation other
than pulse can be due to cardiac massage, weak continuous
vibration from the outside (technician noise, etc.), patient
spasm or other body movement, venous pulse, etc.
Attach sensor correctly to ensure accurate measurement
•
readings. Also, use patient-suitable sensor.
Pulse oximeter cannot identify functional disorder
•
hemoglobin such as carboxyhemoglobin and
methemoglobin. Therefore, measurement discrepancies
will occur for patients suffering from carbon monoxide
poisoning or who are heavy smokers.
• Measurement discrepancies will occur for patients with
coloring reagents (indocyanine green, methylene blue, etc.)
in arteries.
Discrepancies may occur due to intense light such as
•
theater lighting or direct sunlight, so, if this is the case, filter/
block light source.
If sensor becomes detached or light intensity changes due
•
to somebody blocking out light source as he/she walks by,
etc., erroneous measurement readings may be displayed.
Troubleshooting
Action
70-00582-01 A A-29