The Partial Pressure of Oxygen in Arterial Blood is Approximately

Question

The partial pressure of oxygen in arterial blood is approximately
A) 40 mm Hg.
B) 45 mm Hg.
C) 50 mm Hg.
D) 70 mm Hg.
E) 100 mm Hg.

Accepted Answer

The partial pressure of oxygen in arterial blood is approximately 100 mm Hg. This oxygen is bound to hemoglobin in red blood cells for transportation to different tissues and organs in the body.