A patient is seen in the emergency department.The patient had been maintained on theophylline (Theo Dur) ,and a blood sample reveals the serum theophylline level is subtherapeutic.Which may cause a subtherapeutic serum level?
A) Cimetidine use
B) Drug tolerance
C) Smoking
D) Overuse of the inhaler
Correct Answer:
Verified
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A) Acute
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