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A member asked:
Can fasting for a blood test cause low potassium?
3 doctors weighed in across 2 answers
No: Potassium levels are tightly regulated in the body. Fasting should not cause significant change in levels.
Answered 7/6/2018
4.9k views
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No: An overnight fast should not cause low potassium. See this site for more info on the subject. http://www.nlm.nih.gov/medlineplus/ency/article/000479.htm.
Answered 11/14/2018
4.9k views
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