A nurse is providing care to a client receiving theophylline. The client has received two loading doses and the nurse is evaluating the client's theophylline levels. Which finding would the nurse interpret as a therapeutic drug level?
A) 5 mcg/L
B) 8 mcg/L
C) 13 mcg/L
D) 20 mcg/L
Ans: C
Feedback:
Therapeutic theophylline levels range from 10 to 20 mcg/L. The possibility of toxicity increases with levels over 15 mcg/L, with toxicity indicated with levels over 20 mcg/L.
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