Phenytoin (Dilantin) has a narrow therapeutic index. The nurse recognizes that this characteristic indicates which of these?
A) The safe and the toxic plasma levels of the drug are very close to each other.
B) The phenytoin has a low chance of being effective.
C) There is no difference between safe and toxic plasma levels.
D) A very small dosage can result in the desired therapeutic effect.
Correct Answer:
Verified
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