The oxygenation status of a burn victim is most appropriately measured by which of the follow-ing?
a. CO-oximeter c. In vitro blood gas analyzer
b. Pulse oximeter d. In vivo blood gas monitor
ANS: D
Patients who have been in a fire have been exposed to carbon monoxide (CO) and are very likely to have elevated HbCO levels. In vitro and in vivo blood gas analyzers calculate O2Hb levels, so a CO-oximeter is appropriate because it measures the O2Hb directly and will also provide the HbCO level. High levels of HbCO can adversely affect a pulse oximeter because HbCO is relative-ly transparent to IR light and can lead to an overestimation of pulse oximetry oxygen saturation (SpO2).
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A) True B) False
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