Potassium urine test

Female urinary tract

The female and male urinary tracts are relatively the same except for the length of the urethra.

Male urinary tract

The male and female urinary tracts are relatively the same except for the length of the urethra.

How the Test is Performed

After you provide a urine sample, it is tested in the lab. If needed, the health care provider may ask you to collect your urine at home over 24 hours. Your provider will tell you how to do this. Follow instructions exactly so that the results are accurate.

How to Prepare for the Test

DO NOT stop taking any medicine before talking to your provider.

How the Test will Feel

This test involves only normal urination. There is no discomfort.

Why the Test is Performed

Your provider may order this test if you have signs of a condition that affects body fluids, such as dehydration, vomiting, or diarrhea.

It may also be done to diagnose or confirm disorders of the kidneys or adrenal glands.

Normal Results

For adults, normal urine potassium values are generally 20 mEq/L in a random urine sample and 25 to 125 mEq per day in a 24 hour collection. Lower or higher urinary level may occur depending on the amount of potassium in your diet and the amount of potassium in your body.

The examples above are common measurements for results of these tests. Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your provider about the meaning of your specific test results.

What Abnormal Results Mean

A higher than normal urine potassium level may be due to:

Low urine potassium level may be due to: