This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Pediatrics
The immediate treatment of 10 kg weight infants presented with tetany: 
Select and explain. 
A. IV Diazepam, B. IV calcium gluconate with cardiac monitoring, C. IV slow phenobarbitone, D. Wait and watch
B: IV calcium gluconate with cardiac monitoring
Answer: B: IV calcium gluconate with cardiac monitoring 
Explanation: (IV, Calcium gluconate with cardiac monitoring) (178-G) (486-87-Ghai 7th)Hypocalcemia* S. calcium less than 7 mg/dL* S. phosphate level may be elevated* ECG - QTc interval is prolonged* X-ray -congenital absence of thymus* Calcium gluconate 2 ml/kg of 10% solution is advised IV slowly to control the seizure, ECG monitoring is necessary during calcium infusion.* Feeds should be low in phosphate, cow milk feeds should be replaced with breast feeding.