Hypophosphatemia

A decrease of serum inorganic phosphate below the normal range (0.80-1.45 mmol/L or 2.5-4.5 mg/dL), leading to cellular energy failure, neuromuscular dysfunction, osteomalacia and rickets. Possible causes are inadequate intake (malnutrition, starvation), renal losses (hyperparathyroidism, Cushing's syndrome, diuretics, iron infusion), GI loss (vomiting, diarrhea, vitamin D deficiency, antacids), or cellular redistribution (refeeding syndrome, diabetic ketoacidosis).