Causes of Hypocalcemia in a child are
Causes of hypocalcemia Hypoparathyroidism
DiGeorge syndrome PTH receptor defect (pseudohypoparathyroidism)
Magnesium deficiency Exogenous organic phosphate excess Vit D difecidecien
DiGeorge syndrome
Hypoparathyroidism
Magnesium deficiency
All of above