This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid & Electrolyte, Subject name: Pediatrics
A child came to the casualty with tetany. what will you do: 
Select and explain. 
A. Inj. Phenytoin, B. Inj. Phenobarbitone, C. Inj. Calcium gluconate, D. Wait and watch
C: Inj. Calcium gluconate
Answer: C: Inj. Calcium gluconate 
Explanation: Ans: c (Inj .calcium gluconate) Ref: Nelson, 18th ed, p. 258; OP Ghai, 6th ed, p. 88Hypocalcemia may manifest with jitteriness, tetany, caipopedal spasms, laryngospasm and seizures.Signs of latent tetany(1) Trousseau's sign- caipopedal spasm of forearm and hand(2) Chovsteks sign- twitching of the orbicularis oculi and mouth by tapping the facial nerve anterior to the external auditory meatus.Management of hypocalcaemiaTetany, laryngospasm and seizures must be treated immediately with 2 ml/kg of 10% of calcium gluconate intravenously and upto a maximum of 10 ml.This must be administered slowly under cardiac monitoring.