Potassium normal range: Learn what potassium is

Learn what potassium is, why you may need a blood test to check your levels, and what the normal range is. Find out the symptoms and causes of high or low potassium levels, and how to prepare for the test. The normal range is 3.7 to 5.2 milliequivalents per liter (mEq/L) 3.70 to 5.20 millimoles per liter (millimol/L). Normal value ranges may vary slightly among different laboratories. Talk to your provider about the meaning of your specific test results. The examples above show the common measurements for results for these tests. Some laboratories use different measurements or may test different specimens. Explore the potassium normal range , its health implications, and how it affects your well-being. Understand your health better—read the article now. Why Do I Need a Potassium Blood Test ? The potassium test measures the amount of potassium in your blood to see if levels fall within the normal range or are abnormally high (hyperkalemia) or abnormally low (hypokalemia). 1 As part of the BMP, the potassium test is commonly performed during routine checkups to assess your general health.