Captopril suppression test

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

• Captopril challenge test – used to diagnose renal artery stenosis

References

1. Agharazii M, Douville P, Grose JH, Lebel M (June 2001). "Captopril suppression versus salt loading in confirming primary aldosteronism". Hypertension. 37 (6): 1440–3. doi:10.1161/01.hyp.37.6.1440. PMID 11408392.