Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Font Size

Aldosterone in Blood


An aldosterone test measures the level of aldosterone (a hormone made by the adrenal glands) in the blood.

Aldosterone levels in a blood sample also change depending on whether you are standing up or lying down at the time the blood is taken. Blood aldosterone levels will be higher if you are standing or sitting up for 2 hours before the test.


The normal values listed here-called a reference range-are just a guide. These ranges vary from lab to lab, and your lab may have a different range for what's normal. Your lab report should contain the range your lab uses. Also, your doctor will evaluate your results based on your health and other factors. This means that a value that falls outside the normal values listed here may still be normal for you or your lab.

Results are usually available in 2 to 5 days.

Aldosterone in blood 1
Children Teens Adults
Standing or sitting down

5-80 nanograms per deciliter (ng/dL) or 0.14-2.22 nmol/L

4-48 ng/dL or 0.11-1.33 nmol/L

7-30 ng/dL or 0.19-0.83 nmol/L

Lying down

3-35 ng/dL or 0.08-0.97 nmol/L

2-22 ng/dL or 0.06-0.61 nmol/L

3-16 ng/dL or 0.08-0.44 nmol/L

An overgrowth of normal cells in the adrenal glands (called adrenal hyperplasia) or a tumor of the adrenal glands affects the adrenal glands directly and causes a condition called primary aldosteronism. Certain diseases such as heart failure, cirrhosis, or kidney disease can also cause high aldosterone levels, but this is a normal response by the adrenal glands. These diseases cause secondary aldosteronism.

Aldosterone and renin levels
Aldosterone Renin
Primary hyperaldosteronism (Conn's syndrome)



Secondary hyperaldosteronism



High values

High aldosterone levels can be caused by:

Symptoms of a high aldosterone level include high blood pressure, muscle cramps and weakness, numbness or tingling in the hands, and low levels of potassium in the blood.

Low values

Addison's disease and some types of kidney disease may cause low aldosterone levels.

WebMD Medical Reference from Healthwise

Last Updated: November 14, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

Hot Topics

WebMD Video: Now Playing

Click here to wach video: Dirty Truth About Hand Washing

Which sex is the worst about washing up? Why is it so important? We’ve got the dirty truth on how and when to wash your hands.

Click here to watch video: Dirty Truth About Hand Washing

Popular Slideshows & Tools on WebMD

disciplining a boy
Types, symptoms, causes.
Remember your finger
Are You Getting More Forgetful?
fruit drinks
Eat these to think better.
No gym workout
Moves to help control blood sugar.
acupuncture needle on shoulder
10 tips to look and feel good.
Close up of eye
12 reasons you're distracted.
birth control pills
Which kind is right for you?
embarrassed woman
Do you feel guilty after eating?
Epinephrine Injection using Auto-Injector Syringe
Life-threatening triggers.
woman biting a big ice cube
Habits that wreck your teeth.
pacemaker next to xray
Treatment options.
caregiver with parent
10 tips for daily life.

Pollen counts, treatment tips, and more.

It's nothing to sneeze at.

Loading ...

Sending your email...

This feature is temporarily unavailable. Please try again later.


Now check your email account on your mobile phone to download your new app.

Women's Health Newsletter

Find out what women really need.