A nurse is teaching a client who has a new prescription for dimenhydrinate. Which of the following instructions should the nurse include in the teaching?

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:

1. 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.
2. Expect an increase in salivation: Dimenhydrinate does not typically cause an increase in salivation. This is not a known side effect of the medication.
3. 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.

Acetaminophen is a commonly used over-the-counter pain reliever and fever reducer. One of the potential adverse reactions to acetaminophen is liver toxicity, which can present with symptoms such as jaundice (yellowing of the skin and eyes), dark urine, and pale stools. It is important for the client to be aware of these signs and symptoms and report them to their healthcare provider if they occur. Monitoring for jaundice can help identify any potential liver-related complications associated with acetaminophen use.

The other options provided in the question are not typically associated with acetaminophen use:

1. Tinnitus: Tinnitus refers to a perception of ringing or buzzing in the ears. It is not a commonly reported adverse reaction to acetaminophen.
2. Hyperglycemia: Hyperglycemia refers to high blood sugar levels. Acetaminophen does not typically cause hyperglycemia as a side effect.
3. Muscle pain: Acetaminophen is used to relieve mild to moderate pain, including muscle pain. It is not an adverse reaction to the medication.