Which of the Following Are True of the Respiratory Exchange

question 10

Multiple Choice

Which of the following are true of the respiratory exchange ratio?
I.It is the ratio of alveolar CO₂ excretion to blood oxygen uptake.
II.R = VCO₂/VO₂
III.It is the ratio of oxygen uptake to blood alveolar CO₂ excretion.
IV.Its value is normally approximately 0.8.

• A) I, II, IV
• B) III, IV
• C) I, II, III, IV
• D) II, IV

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