Magnesium (Mg) Basics: Normal Range, Abnormal Level Causes and ECG Clues Magnesium does more than most people think—it helps other electrolytes work properly, including moving potassium and sodium across cell membranes. In this quick review, we cover: ✅ Normal Mg range: 1.3–2.2 mEq/L ✅ Why Mg labs can be tricky: much is in bone or bound to albumin, and only ~1% is free-floating ✅ High Mg (hypermagnesemia): poor excretion (notably renal patients) or too much intake (e.g., milk of magnesia/antacid

Aortic valve stenosis - Symptoms and causes