Cover image for article: What is Hypokalemia?

What is hypokalemia? Hypokalemia is the technical term for a low potassium level. Potassium, represented by K on the periodic table of elements, is one of the most important components of the blood. Mild hypokalemia is diagnosed with a serum potassium level less than 3.5 mEq/L, and severe hypokalemia is usually less than 2.5 mEq/L. This common condition has numerous causes; quite a few problematic symptoms; and standard, effective treatments.
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