A patient who has been taking phenytoin for several years comes to the clinic for a follow-up visit and tells the nurse that he has been experiencing gum tenderness and bleeding when he brushes his teeth. The nurse will perform which action?
Ask whether he has been flossing his teeth regularly.
Notify the provider and request an order for serum drug levels.
Reassure him that this is a harmless side effect of phenytoin.
Suggest that he use a soft-bristled toothbrush and massage his gums.¹
The Correct Answer is D
This is because phenytoin, a medication used to control seizures, may cause gingival hyperplasia or overgrowth of the gums¹. This can lead to tenderness, swelling, or bleeding of the gums. The condition is more common in patients taking phenytoin, cyclosporine, or calcium channel blockers¹. The etiology of phenytoin-induced gingival enlargement is likely due to the direct effects of the drug and its metabolites on the gingival fibroblasts¹. Patients can benefit from controlling the inflammatory component through an appropriate oral hygiene program¹. Referral to a general dentist or periodontist is appropriate for management¹.
Choice A is wrong because flossing his teeth regularly may not prevent or reduce the gingival overgrowth caused by phenytoin. Flossing may also aggravate the bleeding of the gums.
Choice B is wrong because serum drug levels may not correlate with the extent of gingival overgrowth. Some studies do not support the concept that the dose, duration, and plasma levels of phenytoin affect the severity of gingival enlargement².
Choice C is wrong because this is not a harmless side effect of phenytoin. Gingival overgrowth may interfere with speech, mastication, tooth eruption and aesthetics². It may also increase the risk of periodontal disease and infection³.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
No explanation
Correct Answer is B
Explanation
Phenytoin (Dilantin) can cause cosmetic side effects, such as coarse facial features, hirsutism, and acne, in some people¹²³. These side effects can affect the client's self-esteem, social interactions, and emotional well-being¹. The nurse should assess the client's perception of his or her appearance and provide support and education to cope with the changes¹.
Choice A is wrong because risk for infection related to immunosuppression is not a relevant nursing diagnosis for this client. Phenytoin can cause blood dyscrasias, such as leukopenia and thrombocytopenia, in some people¹²³. However, these side effects are not related to immunosuppression and do not increase the risk of infection¹. The nurse should monitor the client's blood counts and report any signs of bleeding or anemia to the provider¹.
Choice C is wrong because impaired skin integrity related to hypersensitivity reaction is not a relevant nursing diagnosis for this client. Phenytoin can cause allergic reactions, such as rash, fever, lymphadenopathy, and hepatitis, in some people¹²³. However, these side effects are not related to impaired skin integrity and do not cause skin breakdown or ulceration¹. The nurse should discontinue the medication and report any signs of hypersensitivity reaction to the provider¹.
Choice D is wrong because deficient knowledge related to self-care and medication management is not a relevant nursing diagnosis for this client. Phenytoin requires careful monitoring and education to ensure therapeutic and safe use¹²³. However, this nursing diagnosis does not address the client's specific concern about the cosmetic side effects of phenytoin¹. The nurse should provide information and counseling about the benefits and risks of phenytoin therapy and discuss alternative options with the provider if needed¹.
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