Which factors could influence oxygen saturation measurement? Select all that apply
1. Hemoglobin
2. Hematocrit
3. Carbon dioxide poisoning
4. Activity
5. Circulation
Correct Answer: 1,4,5
Hemoglobin is required to carry oxygen. A client who is severely anemic might have hemoglobin that is fully saturated with oxygen but inadequate oxygen to supply the tissues, yet the pulse oximeter will return a normal value. Hematocrit values have no impact on oximeter readings. Carbon monoxide, not dioxide, poisoning will yield false measurements because the oximeter cannot discriminate between hemoglobin saturated with carbon monoxide versus oxygen. Shivering or excessive movement of the oximeter sensor site will interfere with accurate readings. The oximeter will not return an accurate reading if the sensor is placed in an area with reduced circulation.
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Fill in the blank(s) with correct word