Which of the Following Statements About Pulmonary Physiology Is Correct

question 24

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

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