CO-oximeters routinely measure which of the following?
1. Carboxyhemoglobin (HbCO)
2. Fetal hemoglobin
3. Sulfhemoglobin
4. Oxyhemoglobin (O2Hb)
5. Methemoglobin (metHb)
a. 1 and 2 c. 1, 2, 3, 4, and 5
b. 1, 4, and 5 d. 2, 3, and 5
ANS: B
Most commercially available CO-oximeters provide measurements of only four types of hemo-globin: O2Hb, deoxyhemoglobin, metHb, and HbCO. Sulfhemoglobin and fetal hemoglobin are not usually determined by means of CO-oximetry.
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