A baby presents with tetany. First thing to be done is administration of :
Diazepam
Vitamin D
Calcium gluconate
Calcitonin
The baby presenting with tetany is hypocalcemic, so must be treated immediately with calcium gluconate I.V. Treatment of hypocalcemia.
Acute or Severe Tetany
The objective of the treatment is to correct hypocalcemia immediately with calcium gluconate I.V
Maintenance management of hypoparathyroidism and chronic hypocakenzia.
The objective is to maintain serum calcium and serum phosphase at approximately normal levels. It usually requires.

1. Diet  ---> Calcium supplements and diet rich in calcium.
2. Vitamin D supplementation  ---> Ergocakiferol or dihydrotachysterol.