Aldosterone and Renin
Also known as: Aldosterone and plasma renin activity; PRA
Formal name: Aldosterone, serum; Aldosterone, urine; Renin
Related tests: Cortisol; Electrolytes; Potassium; Aldosterone/Renin activity calculation or ratio; Aldosterone stimulation test; Aldosterone suppression test
At a Glance
Why Get Tested?
To determine if your aldosterone and renin levels are abnormal
When to Get Tested?
When you develop features associated with increased aldosterone production, such as elevated blood pressure, muscle weakness, and low potassium
Sample Required?
A blood sample drawn from a vein in your arm or a 24-hour urine sample; sometimes blood from the renal or adrenal veins is also collected.
Test Preparation Needed?
For a plasma aldosterone and renin measurement, your doctor may ask you to be upright or lying down for a period of time (e.g., 15-30 minutes) prior to the blood draw.
