Renin blood test

Plasma renin activity; Random plasma renin; PRA

The renin test measures the level of renin in blood.

Kidney - blood and urine flow

This is the typical appearance of the blood vessels (vasculature) and urine flow pattern in the kidney. The blood vessels are shown in red and the urine flow pattern in yellow.

How the Test is Performed

How to Prepare for the Test

How the Test will Feel

Why the Test is Performed

Normal Results

What Abnormal Results Mean

Risks