What is the normal range for P(A?a)O2 in a healthy 30-year-old person breathing room air?
a. 0 to 10 mm Hg
b. 5 to 15 mm Hg
c. 10 to 20 mm Hg
d. Cannot predict
ANS: B
For example, a healthy person has a P(A−a)O2 of 5 to 15 mm Hg while breathing room air.
Health Professions
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Which of the following is an example of good record keeping?
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Some vector-borne illnesses are transmitted to humans via:
a. eating partially cooked foods. b. deer ticks. c. contact with human feces. d. sneezing and coughing.
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