Captopril suppression test
Aldosterone (chemical structure) is measured in the CST.
Purpose	measures plasma levels of aldosterone.

The captopril suppression test (CST) is a non-invasive medical test that measures plasma levels of aldosterone.^[1] Aldosterone production is suppressed by captopril through the renin–angiotensin–aldosterone system. CST results are used to assist in the diagnososis of primary aldosteronism (Conn Syndrome).

See also[edit]

• Captopril challenge test - used to diagnose renal artery stenosis

References[edit]