A nurse is caring for an adolescent client who is receiving carbamazepine for partial seizure disorder. Which of the following statements by the client's parent is the nurse's priority?

A. The client demonstrated an allergic response to the medication: While allergic reactions to disulfiram can occur, severe nausea and vomiting after taking the medication are more likely due to its interaction with alcohol rather than an allergic response.

B. The client consumed alcohol while taking the medication: Disulfiram is used to deter alcohol consumption by causing unpleasant reactions when alcohol is ingested. Severe nausea and vomiting are common adverse effects of consuming alcohol while on disulfiram.

C. The client took an overdose of the medication: An overdose of disulfiram could potentially lead to severe adverse effects, but nausea and vomiting alone are not typically indicative of an overdose.

D. The client experienced a common side effect of the medication: While nausea and vomiting are common side effects of disulfiram, they are typically experienced in response to alcohol consumption rather than as direct effects of the medication itself.

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.