A nurse is reinforcing teaching with a client about haloperidol. Which of the following instructions should the nurse include in the teaching?

A. "Avoid foods that contain vitamin K while taking this medication.": Vitamin K interactions are relevant to warfarin therapy, not haloperidol. There is no need for dietary restrictions related to vitamin K when taking haloperidol. B. "Stop taking the medication if drowsiness occurs.": Drowsiness is a common side effect of haloperidol, but abruptly stopping the medication can lead to worsening psychotic symptoms or withdrawal effects. The client should be advised to use caution and report excessive sedation rather than discontinue independently. C. "Rise slowly from a sitting position while taking the medication.": Haloperidol can cause orthostatic hypotension, especially in older adults. Advising the client to rise slowly helps prevent dizziness, lightheadedness, and falls, making it an important safety instruction. D. "Take this medication with folic acid to enhance absorption.": Folic acid supplementation is not required for haloperidol absorption. Folic acid does not improve its effectiveness or bioavailability.