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Difficulty: MediumGeneral Internal Medicine

Based on the clinical indications and current guidelines, which of the following is the most appropriate initial or add-on antihypertensive medication class for each patient described below?

  • A 4242-year-old woman presents with newly diagnosed hypertension. She has a history of recurrent renal colic, and stone analysis previously showed calcium oxalate. Dual-energy x-ray absorptiometry reveals osteopenia.Thiazide-type diuretic
  • A 5858-year-old man with type 2 diabetes mellitus is found to have a blood pressure of 145/92145/92 mm Hg on three separate occasions. Laboratory testing reveals a spot urine albumin-to-creatinine ratio of 420420 mg/g.Angiotensin-converting enzyme inhibitor
  • A 6363-year-old man with poorly controlled hypertension experiences reproducible substernal chest pressure upon walking up a flight of stairs, which resolves with rest. His resting electrocardiogram shows normal sinus rhythm at 8686/min.Cardioselective beta-blocker
  • A 5050-year-old Black man presents for a routine checkup and is diagnosed with primary hypertension. He has no other medical problems, and his basic metabolic panel and urinalysis are within normal limits.Dihydropyridine calcium channel blocker

Answer

The correct pairings align the patient's comorbidities with the specific benefits of each antihypertensive class: the patient with nephrolithiasis matches with a thiazide-type diuretic; the diabetic patient with albuminuria matches with an angiotensin-converting enzyme inhibitor; the patient with stable angina matches with a cardioselective beta-blocker; and the Black patient with uncomplicated hypertension matches with a dihydropyridine calcium channel blocker.
Each patient's clinical scenario contains compelling indications for a specific antihypertensive class based on current joint guidelines. Thiazides prevent calcium stones; ACE inhibitors protect diabetic kidneys; beta-blockers relieve angina; and calcium channel blockers are first-line for Black patients with uncomplicated hypertension.

Step-by-Step Solution

1
Evaluate the patient with recurrent calcium oxalate stones and osteopenia.
Identify that this patient benefits from decreased urinary calcium excretion.
Thiazide diuretics uniquely decrease urinary calcium, preventing stones and aiding bone health.
2
Assess the diabetic patient with macroalbuminuria.
Identify the need for targeted renal protection.
ACE inhibitors reduce intraglomerular pressure, offering specific renoprotection in diabetic nephropathy.
3
Analyze the patient with exertional angina and hypertension.
Identify the need to decrease myocardial oxygen demand.
Beta-blockers lower heart rate and contractility, effectively treating both hypertension and stable angina.
4
Consider the Black patient with uncomplicated hypertension.
Select a guideline-recommended first-line agent for this demographic.
Dihydropyridine calcium channel blockers provide superior blood pressure lowering in Black patients compared to ACE inhibitors when used as monotherapy.

Key Concept

Selection of antihypertensive medications must be tailored to patient-specific compelling indications, such as comorbidities (e.g., angina, diabetes with albuminuria) and demographic factors, to optimize both blood pressure control and overall outcomes.
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General Internal Medicine

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