Hypomagnesemia
Inpatient Management Guide Definition Magnesium Hypomagnesemia: serum magnesium < 1.5-1.7 mg/dL (depeding on the assay) Hypermagnesemia: serum magnesium > 2.2-2.5 mg/dL (depending on the assay) Phosphorus Hypophosphatemia: Moderate hypophosphatemia, 1-2.5 mg/dL Severe hypophosphatemia, < 1 mg/dL Hyperphosphatemia: serum phosphate, >4.5 mg/dL Etiology Magnesium Hypomagnesemia: Inadequate intake: alcoholism, malnutrition, anorexia Increased GI losses: diarrhea, malabsorption, vomiting, …