A nurse is preparing to administer a client's antihypertensive medication. When using clinical judgment, which of the following findings indicates the nurse should further assess the client before administering medication?

The correct answer is B. Dizziness when ambulating can indicate orthostatic hypotension, a common side effect of antihypertensive medications. The nurse should assess further to ensure the client's safety before administering the medication. A: The amount of breakfast eaten is not directly related to the administration of antihypertensive medication. C: Trouble sleeping does not necessitate further assessment for antihypertensive administration. D: A urine output of 400 mL for 8 hours is within the normal range and does not raise concern for administering antihypertensive medication.