Captopril suppression test
Encyclopedia
Blood plasma
Blood plasma is the straw-colored liquid component of blood in which the blood cells in whole blood are normally suspended. It makes up about 55% of the total blood volume. It is the intravascular fluid part of extracellular fluid...
levels of aldosterone
Aldosterone
Aldosterone is a hormone that increases the reabsorption of sodium ions and water and the release of potassium in the collecting ducts and distal convoluted tubule of the kidneys' functional unit, the nephron. This increases blood volume and, therefore, increases blood pressure. Drugs that...
.
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).