The nurse explains to the patient, who needs to start initial drug therapy for hypertension, that treatment usually includes one or more agents from which four drug classes? Select all that apply

Many antihypertensive drugs, such as beta blockers and certain diuretics, can cause sexual dysfunction, including decreased libido, erectile dysfunction, or difficulty with ejaculation. These effects can significantly impact adherence to therapy. The most appropriate nursing action is to acknowledge the concern and inform the patient that the physician can adjust the dose or change the medication to minimize side effects while maintaining blood pressure control.

Rationale for correct answer:

B. “The physician can work with you on changing the dose and/or drugs.”
This response shows therapeutic communication and supports collaboration in care. The nurse recognizes that sexual dysfunction is a common adverse effect of some antihypertensives and encourages the patient to discuss it with the provider. Adjusting the dose, changing to a different class (e.g., ACE inhibitor, ARB, or calcium channel blocker), or timing the medication differently can often resolve the issue.

Rationales for incorrect answers:

A. “Not to worry. Eventually, tolerance will develop.”
This statement is inaccurate and dismissive. Tolerance to sexual side effects does not typically occur with antihypertensive therapy, and reassurance without intervention may discourage further communication about the issue.

C. “Sexual dysfunction happens with this therapy, and you will learn to accept it.”
This response is non-therapeutic and lacks empathy. It dismisses the patient’s concern and may lead to nonadherence, as sexual health is an important aspect of quality of life.

D. “This is an unusual occurrence, but it is important to stay on your medications.”
This response provides false reassurance, as sexual dysfunction is actually a common side effect of many antihypertensive drugs. It also ignores the opportunity to address the patient’s concern through collaborative problem-solving.

Take-home points:
• Sexual dysfunction is a common side effect of beta blockers and diuretics used for hypertension.
• The nurse should encourage open communication and refer the patient for possible medication adjustment.
• Empathetic, therapeutic responses improve adherence and patient satisfaction with treatment.

The initial pharmacologic management of hypertension typically involves agents that target different mechanisms controlling blood pressure, such as fluid volume, vascular resistance, and cardiac output. Evidence-based guidelines recommend beginning therapy with drugs from the following four classes: diuretics, ACE inhibitors, angiotensin II receptor blockers (ARBs), and calcium channel blockers (CCBs). These medications effectively reduce blood pressure, decrease cardiovascular risk, and are well-tolerated for long-term therapy.

Rationale for correct answers:

A. Diuretics
Thiazide-type diuretics (e.g., hydrochlorothiazide) are often the first-line agents for hypertension. They lower blood pressure by reducing blood volume through sodium and water excretion and by decreasing peripheral vascular resistance. They are particularly effective in older adults and clients with salt-sensitive hypertension.

D. Angiotensin II receptor blockers (ARBs)
ARBs (e.g., losartan, valsartan) block the binding of angiotensin II to its receptors, leading to vasodilation and reduced aldosterone-mediated sodium retention. They are often used when clients cannot tolerate ACE inhibitors due to cough or angioedema.

E. Calcium channel blockers (CCBs)
CCBs (e.g., amlodipine, diltiazem) lower blood pressure by inhibiting calcium influx into vascular smooth muscle and cardiac cells, causing arterial relaxation and vasodilation. They are particularly effective in African American clients and those with isolated systolic hypertension.

F. ACE inhibitors
ACE inhibitors (e.g., lisinopril, captopril) inhibit the conversion of angiotensin I to angiotensin II, leading to vasodilation, reduced aldosterone secretion, and decreased afterload. They are especially beneficial for clients with diabetes or chronic kidney disease due to their renal-protective effects.

Rationales for incorrect answers:

B. Beta blockers
Although beta blockers (e.g., propranolol, metoprolol) can lower blood pressure, they are no longer considered first-line therapy for uncomplicated hypertension. They are more commonly used when there are coexisting conditions such as heart failure, post-MI, or arrhythmias.

C. Aldosterone receptor antagonist
These agents (e.g., spironolactone, eplerenone) are not first-line drugs but are used as add-on therapy in resistant hypertension or when hyperaldosteronism is suspected.

G. Direct renin inhibitors
Aliskiren inhibits renin activity and decreases angiotensin II production but is not typically first-line due to limited long-term outcome data and potential for adverse renal effects when combined with ACE inhibitors or ARBs.

H. Alpha-1 adrenergic blockers
These medications (e.g., doxazosin, prazosin) are used as adjuncts, mainly in clients with benign prostatic hyperplasia (BPH). They are not preferred as initial therapy because of risks of orthostatic hypotension.

Take-home points:
• First-line antihypertensive agents include diuretics, ACE inhibitors, ARBs, and calcium channel blockers.
• Combination therapy is often required to achieve target blood pressure control.
• Drug selection should be individualized based on comorbidities, age, and drug tolerance