Causes of Hypermagnesemia

Increased magnesium load

 - Magnesium-containing laxatives, antacids, or enemas

 - Treatment of pre-edampsia/eclampsia (mothers and neonates)

 - Diabetic ketoacidosis (untreated)

 - Tumor lysis

 - Rhabdomyolysis

Increased renal magnesium absorption

 - Hyperparathyroidism

 - Familial hypocalciuric hypercalcemia

 - Hypothyroidism

 - Mineralocorticoid deficiency, adrenal insufficiency (Addison's disease)



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