Table 1: Causes of Hypocalcemia

Table 1:
Causes of Hypocalcemia
Decreased Entry of Calcium into the Circulation	Increased Loss of Calcium from the Circulation	Other Causes
Hypoparathyroidism (absence of PTH secretion) Postoperative Autoimmune (isolated or part of polygandular autoimmune syndrome) Congenital (mutations of CaSR, PTH, and parathyroid aplasia) Pseudohypoparathyroidism, types 1a and 1b, and type 2 Magnesium depletion Severe hypermagnesemia Deficiency of vitamin D	Hyperphosphatemia Renal failure Rhabdomyolysis Tumor lysis Phosphate administration Acute pancreatitis Hungry bone syndrome Chelation Citrate EDTA Lactate Foscarnet Widespread osteoblastic metastases Prostate cancer Breast cancer	Sepsis Fluoride administration Surgery Chemotherapy Cisplatin 5-fluorouracil Leucovorin
CaSR = calcium-sensing receptor; PTH = parathyroid hormone; EDTA = ethylenediaminetetraacetic acid