Difficulty: Medium
Average Score: 65%
Simulated
The nurse is performing a medication reconciliation for a client taking prescribed phenytoin. Which medication should the nurse question with the physician while the client is taking phenytoin?
Correct answer
C
Rationale
Phenytoin induces liver enzymes, which can decrease warfarin's effectiveness, increasing the risk of clotting. Thiamine, prazosin, and acyclovir have no significant interactions with phenytoin.