This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
Most common route of administration of insulin: 
Select and explain. 
A. Intramuscular, B. Subcutaneous, C. Intravenous, D. Intradermal
B: Subcutaneous
Answer: B: Subcutaneous 
Explanation: Ans. B. SubcutaneousMost common route of administration is subcutaneous. Only in case of diabetic ketoacidosis, regular insulin is given Intravenously.