This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autacoids, Subject name: Pharmacology
A patient arrives in the emergency room in a coma and has a serum Ca 2+ of 4.5 mM. You sta a saline infusion of which of the following drugs 
Select and explain. 
A. Ethacrynic acid, B. Calcitonin, C. Hydrochlorothiazide, D. Spironolactone
A: Ethacrynic acid
Answer: A: Ethacrynic acid 
Explanation: Loop diuretics such as ethacrynic acid , Furosemide increase the excretion of Ca 2+. Ref:- KD Tripathi