Multiple Choice
Which of the following statements about pulmonary physiology is correct?
A) The PO2 of inspired air at sea level is approximately 159 mmHg.
B) The percentage of CO2 in the air is 0.0003.
C) The percentage of O2 in the air at sea level is the same as at high altitude.
D) All of the above answers are correct
Correct Answer:
Verified
Correct Answer:
Verified
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