Under ideal conditions, pulse oximeter readings patients usually fall in what range of those ob-tained with invasive hemoximetry?
a. 1% to 2%
b. 2% to 3%
c. 3% to 5%
d. 5% to 7%
ANS: C
In terms of accuracy, the pulse oximetry readings of sick patients usually fall within ±3% to 5% of those obtained with invasive hemoximetry.
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