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Primary Aldosteronism — EECC MCQ

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HardHypertension & Preventive CardiologyPrimary AldosteronismEECC

A 55-year-old woman has confirmed primary aldosteronism and a 15-mm unilateral adrenal nodule on CT. She is willing to undergo surgery. Which investigation should precede adrenalectomy?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: D — Adrenal vein sampling

Adrenal vein sampling is the reference test for lateralising aldosterone secretion before surgery in most adults. CT cannot reliably distinguish a functioning microadenoma from an incidental non-functioning nodule or occult contralateral secretion.

Reference: https://www.escardio.org/Guidelines/Clinical-Practice-Guidelines