A 15 day old baby presented to the emergency depament with history of seizures. Blood tests revealed serum calcium of 5mg/dl, serum phosphate of 9 mg/dl and an intact PTH of 30 pg/ml (Normal Intact PTH = 10-60 pg/ml). Which of the following is the most likely diagnosis?
Baby is showing features of relative hypoparathyroidism. In hypoparathyroidism serum calcium level is decreased, Phosphate level is increased and PTH levels is inappropriately normal, low or undetectable. Ref: Endocrinology and Metabolism By Pauline M. Camacho page77; The Cambridge encyclopedia of human paleopathology By Ahur C. Aufderheide, Conrado Rodriguez-Main, Odin Langsjoen page 333.
Pseudohypoparathyroidism
Hypoparathyroidism
Vitamin D Deficiency
Hypoxic Ischaemic Encephalopathy