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What is plasma renin activity test?

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You may get this blood test if your blood pressure isn’t under control with medication of if you’re young. It checks both the levels of an enzyme called renin and a hormone called aldosterone.

High or low levels may help explain why you have high blood pressure:

The results can help your doctor decide which medications or other treatments will work best for you.

  • High renin with normal aldosterone may show that you’re sensitive to salt.
  • Low renin and high aldosterone may mean your adrenal glands aren’t working the way they should.
  • If both are high, it can be a sign that there’s a problem with your kidneys.

From: What Is a Renin Test? WebMD Medical Reference

SOURCES:

American Association for Clinical Chemistry: “Aldosterone and Renin.”

UCLA Health: “Renin Test.”

The Merck Manual: “High Blood Pressure (Hypertension.)”

University of Rochester Medical Center:  “Aldosterone and Renin.”

Reviewed by James Beckerman on May 17, 2019

SOURCES:

American Association for Clinical Chemistry: “Aldosterone and Renin.”

UCLA Health: “Renin Test.”

The Merck Manual: “High Blood Pressure (Hypertension.)”

University of Rochester Medical Center:  “Aldosterone and Renin.”

Reviewed by James Beckerman on May 17, 2019

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What do renin test results mean?

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