A nurse is providing teaching for a client who has a new prescription for alprazolam to treat insomnia. Which of the following instructions should the nurse include?

A. "I'll be glad when I can stop taking this medicine.": This statement indicates a misunderstanding about phenytoin therapy. Phenytoin is typically a long-term medication used to prevent seizures, and it is not typically discontinued unless under the guidance of a healthcare provider. The nurse should clarify that stopping the medication abruptly can lead to rebound seizures and should emphasize the importance of continuing the medication as prescribed.

B. "I have made an appointment to see my dentist next week.": This statement indicates appropriate understanding, as regular dental check-ups are important for individuals taking phenytoin due to the medication's potential side effect of gingival hyperplasia.

C. "I know that I cannot switch brands of this medication.": This statement demonstrates understanding, as different brands of phenytoin can have variations in bioavailability, which can affect seizure control. It is important for clients to remain consistent with the same brand or formulation unless directed otherwise by their healthcare provider.

D. "I will notify my doctor before taking any other medications.": This statement indicates understanding of the potential for drug interactions with phenytoin, as it is a hepatic enzyme inducer and can affect the metabolism of other medications. Clients should always consult their healthcare provider before taking any new medications or supplements to ensure compatibility with phenytoin therapy.

A. "You will need to take this medication on an empty stomach."

Lithium is typically taken with food to minimize gastrointestinal side effects. Instructing the client to take it on an empty stomach would be incorrect.

B. "You will need to stop this medication if you experience diarrhea."

Diarrhea is not typically a reason to stop lithium therapy. However, persistent diarrhea can lead to dehydration and electrolyte imbalances, which may affect lithium levels. It's essential for the client to report persistent diarrhea to their healthcare provider for further evaluation and management.

C. "You will need to consume a low-salt diet while on this medication."

A low-salt diet is not typically recommended with lithium therapy. In fact, lithium can cause sodium depletion, so it's important for clients to maintain adequate salt intake unless otherwise instructed by their healthcare provider.

D. "You will need your blood levels drawn weekly during the first month."

This statement is correct. Monitoring serum lithium levels is crucial to ensure the medication's effectiveness and prevent toxicity. Initially, frequent monitoring is necessary to establish the appropriate dosage and assess for any signs of toxicity. Weekly blood level checks during the first month of therapy are common practice.