Which of the following devices should be used for noninvasive monitoring of oxygen tension of a premature newborn?
a. In vivo PO2 c. Point-of-care PO2
b. Pulse oximetry d. Transcutaneous PO2
ANS: D
Newborns are usually monitored with transcutaneous PO2 monitors because they are noninvasive and the ratio of transcutaneous PO2 to PaO2 measured by hemoximetry has been shown to be good for neonatal use. In vivo PO2 and point-of-care PO2 are invasive. Pulse oximetry is affected by light sources such as heat lamps used with premature newborns and is therefore not used with these patients.
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