A nurse is caring for a client who has poison ivy and is prescribed diphenhydramine. Which of the following instructions should the nurse give regarding the adverse effect of dry mouth associated with diphenhydramine?
"Administer the medication with food."
"Discontinue the medication and notify your provider.”
"Place a humidifier at your bedside every evening.”
“Chew on sugarless gum or suck on hard, sour candies."
The Correct Answer is D
Dry mouth is a common side effect of diphenhydramine, which is an antihistamine medication commonly used to relieve symptoms of allergies, including itching and rash. Chewing on sugarless gum or sucking on hard, sour candies can help stimulate saliva production and alleviate the discomfort of dry mouth.

A. "Administer the medication with food": While taking diphenhydramine with food may help reduce the risk of stomach upset, it does not directly address the dry mouth side effect.
B. "Discontinue the medication and notify your provider": Discontinuing the medication without consulting the healthcare provider is not recommended unless specifically instructed to do so. Dry mouth is a common side effect of diphenhydramine and can be managed with supportive measures.
C. "Place a humidifier at your bedside every evening": While using a humidifier can help add moisture to the air and potentially alleviate dryness in the environment, it is not a specific instruction for managing dry mouth caused by diphenhydramine.
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Related Questions
Correct Answer is C
Explanation
Dimenhydrinate is an antihistamine commonly used to treat motion sickness and vertigo. One of the common side effects of dimenhydrinate is dizziness. It can cause sedation and impair cognitive and motor functions. Therefore, the client should be advised to be cautious when engaging in activities that require alertness, such as driving or operating machinery. Monitoring for dizziness and taking appropriate precautions can help prevent accidents and ensure the client's safety.
The other options provided in the original response are incorrect:
- Administer 24 hr before effects are desired: This is not a correct instruction for dimenhydrinate. The medication is typically taken 30 minutes to 1 hour before the desired effects, such as before travel to prevent motion sickness.
- Expect an increase in salivation: Dimenhydrinate does not typically cause an increase in salivation. This is not a known side effect of the medication.
- Observe for diarrhea: Diarrhea is not a common side effect of dimenhydrinate. While gastrointestinal disturbances can occur with some antihistamines, it is not typically associated with dimenhydrinate use.
Correct Answer is C
Explanation
Acetaminophen is generally considered safe and well-tolerated when used appropriately. However, it is primarily metabolized by the liver, and in cases of severe hepatic impairment or liver failure, the metabolism of acetaminophen can be significantly impaired. This can lead to the accumulation of toxic metabolites, which can cause further liver damage and potentially result in hepatotoxicity.
Hypertension, gallbladder disease, and tachyarrhythmias are not typically considered contraindications for the use of acetaminophen. However, it is important to consider any potential interactions or precautions when using acetaminophen in patients with these conditions, and consulting with a healthcare provider is recommended to ensure the safe and appropriate use of the medication.

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