Pulse Oximeters Measure Which of the Following Forms of Hb

Question

Pulse oximeters measure which of the following forms of Hb?
A) RHb,total Hb
B) RHb,O2Hb
C) O2Hb,COHb
D) COHb,MetHb

Accepted Answer

Pulse oximeters measure the relative amounts of reduced hemoglobin (RHb) and oxyhemoglobin (O2Hb) to determine oxygen saturation levels in the blood.