Figure 2
From: Aldosterone-producing adenoma and other surgically correctable forms of primary aldosteronism
Algorithm for screening, diagnosis and management of primary aldosteronism. This algorithm, drawn from recent guidelines[3], suggests screening patients with difficult-to-treat or hypokalemic hypertension using the aldosterone to renin ratio (ARR). Patients with a raised ARR undergo confirmatory tests. Adrenal computed tomography (CT) is performed in patients with confirmed PA. Adrenal vein sampling (AVS) is suggested to patients who may have an adrenalectomy, to identify whether or not aldosterone hypersecretion is unilateral.