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A 41-year-old member asked:

What are normal potassium levels?

2 doctor answers4 doctors weighed in
Dr. Tarek Naguib
Nephrology and Dialysis 40 years experience
3.6-5 meq/L: Milliequivalent per liter or millimol/liter (mmol/l). If you live outside the us in a country that uses milligram/dl the number will be different. You need to know your potassium since it is very important if you have kidney disease.
Dr. Rex Mahnensmith
A Verified Doctoranswered
A US doctor answeredLearn more
Blood potassium: In blood, the normal range is 3.6 mg/dL to 5.4 mg/dL. Labs that run these tests typically report a normal range. If you look at a group of healthy individuals, the potassium level in the vast majority will fall between 4.0 to 4.4.

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Similar questions

A 48-year-old member asked:

What are the normal potassium levels for an infant?

1 doctor answer4 doctors weighed in
Dr. Pratip Nag
Pediatrics 18 years experience
4.5-6 in <1month old: Infants (less than 1 month) have higher pottasium levels. Usually in the range of 4.5-6 meq/l but at 1 month the normal range is 3.5- 4.5 meq/l.
A 45-year-old member asked:

What potassium level is considered to be normal?

1 doctor answer1 doctor weighed in
Dr. Rajesh Boorgu
Nephrology and Dialysis 27 years experience
3.5 to 5.0: Most labs will define normal as above. Some may increase the upper limits to 5.2 but anything above 5.5 is clearly abnormal.
A 47-year-old member asked:

Could you tell me what are normal potassium levels in newborns?

1 doctor answer1 doctor weighed in
Dr. Sarosh Batlivala
Pediatric Cardiology 16 years experience
Varies By Source: Reference ranges for potassium vary based on the lab. In general though, the approximate range is in the range of 3.7-5.9 meq/l or 3.7-5.9 mmol/l. For more information visit http://www.Ncbi.Nlm.Nih.Gov/books/nbk307/. Please seek medical attention if you are concerned about abnormal potassium levels in an infant.

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Last updated May 15, 2021

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