When teaching a client prescribed phenytoin about a common adverse effect of this drug, the nurse should instruct the client to:
a. avoid foods preserved in sodium.
b. practice good oral hygiene.
c. use hair replacement products sold OTC.
d. avoid oral contraceptives
ANS: B
Feedback
A Incorrect: Phenytoin does not cause sodium or fluid retention.
B Correct: Gingival hyperplasia is an adverse effect of phenytoin and occurs most often in children.
C Incorrect: Phenytoin does not cause alopecia, but rather may increase hair growth.
D Incorrect: The dosages of oral contraceptives may need to be increased, but are not contraindicated concurrent with the use of phenytoin.
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