Multiple Choice
Which of the following is TRUE about the partial pressure of oxygen?
A) Atmospheric air averages 79 percent of total atmospheric pressure.
B) Blood is the most important factor that determines the extent to which O2 will combine with haemoglobin.
C) Arterial blood is decreased when haemoglobin preferentially combines with CO rather than O2.
D) Arterial blood is increased in high atmospheric pressure.
Correct Answer:

Verified
Correct Answer:
Verified
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