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9. Diagnosis of Primary Aldosteronism

The presence of low renin and hypertension may be enough to prompt certain confirmation tests. Doctors measure levels of aldosterone and sodium in the urine after a three-day high-sodium diet or infusing the blood with a high-saline solution. If the preliminary test confirms primary aldosteronism, the doctor will order further tests such as a CT scan and adrenal vein sampling to check for adenoma and hyperplasia.

urinalysis high-sodium test saline-solution Motortion / Getty Images

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