A college student with migraine headaches that cause nausea and vomiting has been prescribed trimethobenzamide.
The nurse should caution the student to avoid using which substance?

This is because phenothiazines are contraindicated in patients with suspected or established subcortical brain damage. Phenothiazines can cause central nervous system effects such as drowsiness, dizziness, and extrapyramidal symptoms that may worsen the condition of a client with a brain injury.

Choice B is wrong because phenothiazines are not contraindicated in clients with ischemic heart disease.

However, they should be used with caution as they can cause hypotension and cardiac arrhythmias.

Choice C is wrong because phenothiazines are not contraindicated in pediatric clients.

However, they should be used with caution as they can cause sedation, anticholinergic effects, and paradoxical excitement.

Choice D is wrong because phenothiazines are not contraindicated in clients with type 2 diabetes.

However, they should be used with caution as they can cause hyperglycemia and alter the effects of antidiabetic drugs.

This is because aprepitant can cause dehydration as an adverse effect, so the nurse will want to encourage the client to drink as much liquid as possible.

Choice A is wrong because the client’s temperature would not be affected by aprepitant.

Choice B is wrong because the client must be encouraged for fluid intake as tolerated, so placing an NPO sign on the door would not be appropriate for this client.

Choice D is wrong because elevating the head of the bed would be unnecessary for a client receiving aprepitant.