A nurse is making a follow-up call to a client who has a new prescription for an ACE inhibitor to treat hypertension. The client reports lightheadedness upon standing. Which of the following statements should the nurse make?

Angiotensin-converting enzyme (ACE) inhibitors are commonly prescribed antihypertensive medications that work by blocking the conversion of angiotensin I to angiotensin II, resulting in vasodilation and decreased blood pressure. A known early adverse effect is orthostatic hypotension, which can cause dizziness or lightheadedness when changing positions. Patient education focuses on preventing falls, promoting safety during position changes, and encouraging adherence to therapy despite transient side effects. Rationale: A. Discontinuing the medication is not appropriate without consulting the healthcare provider. ACE inhibitors are effective long-term treatments for hypertension, and abrupt discontinuation can lead to uncontrolled blood pressure. Mild orthostatic symptoms are common initially and are usually managed with safety strategies rather than stopping the drug. B. Taking a daily potassium supplement is not recommended because ACE inhibitors can increase serum potassium levels by reducing aldosterone secretion. This places the client at risk for hyperkalemia, which can cause cardiac dysrhythmias. Therefore, potassium supplementation should only be used if specifically prescribed and monitored. C. Restricting daily fluid intake is inappropriate because adequate hydration helps maintain circulating blood volume and may reduce orthostatic symptoms. Fluid restriction could worsen hypotension and increase the risk of dizziness or fainting. Clients are generally encouraged to maintain appropriate fluid intake unless otherwise indicated. D. Sitting back down for a few minutes when lightheadedness occurs is the correct safety instruction. This helps prevent falls by allowing blood pressure to stabilize before resuming movement. Clients should also be taught to rise slowly from sitting or lying positions to minimize orthostatic hypotension effects.