A nurse is caring for a client who has chronic hypertension. The client's morning vital signs include BP 140/80 mm Hg, heart rate 54/min, and respiratory rate 18/min. Which of the following medications should the nurse plan to withhold?

B. Headache, particularly a pounding headache or throbbing sensation, is a well-known side effect of nitroglycerin use. It occurs due to the vasodilatory effects of nitroglycerin, which can lead to dilation of blood vessels in the head and neck.
A. Ringing in the ears, also known as tinnitus, is not a common adverse effect of nitroglycerin. Tinnitus is typically associated with certain medications, exposure to loud noises, or underlying medical conditions such as inner ear disorders. It is not a recognized adverse effect of nitroglycerin.
C. Nitroglycerin is not known to increase blood pressure. In fact, it typically causes vasodilation and can lead to a decrease in blood pressure, especially when used sublingually or transdermally. Hypotension, rather than hypertension, is a potential adverse effect of nitroglycerin therapy.

D. Polyuria, or excessive urination, is not a recognized adverse effect of nitroglycerin. Polyuria may occur as a result of other medications or underlying medical conditions affecting renal function, but it is not directly associated with nitroglycerin use.

D. Atenolol is a beta-blocker used to treat hypertension and lower heart rate. Given the client's low heart rate of 54 beats per minute (bradycardia), there is a potential concern about further lowering the heart rate with atenolol. Therefore, the nurse should consider withholding atenolol and consulting with the healthcare provider regarding the low heart rate before administering the medication.
A. Lisinopril is an angiotensin-converting enzyme (ACE) inhibitor used to treat hypertension. With a blood pressure of 140/80 mm Hg, it is within the normal range for a client with chronic hypertension.
B. Hydrochlorothiazide is a diuretic commonly used to treat hypertension. With a blood pressure of 140/80 mm Hg, it is within the normal range for a client with chronic hypertension. Therefore, there is no immediate need to withhold hydrochlorothiazide based on the current blood pressure reading.
C. Aspirin is commonly used for cardiovascular protection in clients with hypertension. It is not typically withheld based on blood pressure readings alone unless there are other contraindications or concerns.