Multiple Choice
A patient taking Dilantin (phenytoin) for a seizure disorder is experiencing breakthrough seizures. A blood sample is taken to determine the serum drug level. Which of the following would indicate a sub-therapeutic level?
A) 15 mcg/mL.
B) 4 mcg/mL.
C) 10 mcg/dL.
D) 5 mcg/dL.
Correct Answer:

Verified
Correct Answer:
Verified
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