Which factor is associated with a decrease in the plasma levels of theophylline in an asthmatic patient?
a. Cigarette smoking
b. Heart failure
c. Hepatic disease
d. Viral infections
ANS: A
Conditions that tend to decrease plasma levels of theophylline include cigarette smoking and the use of medications that increase hepatic clearance, such as phenobarbital.
Health Professions
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a. wood b. glass c. metal d. dark
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Indicate whether the statement is true or false
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