What is a normal single-breath diffusing capacity for carbon monoxide for a young, healthy man of average size?
a. 10 ml/min/mm Hg
b. 20 ml/min/mm Hg
c. 30 ml/min/mm Hg
d. 40 ml/min/mm Hg
ANS: D
A typical normal value for a 20-year-old healthy man is 40 ml/min/mm Hg.
Health Professions
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