BURN question re: IV narcotics

Hey all!

I was asked a question on the "Introductions" forum that kind of stumped me. I was hoping you could help us both out.

Here's the question:


"We had our review class for the licensure exams and they have this question:
A narcotic IV was orderd to control the pain of the client with burns. Why was the IV route selected?

a. Burns cause excruciating pain, requiring immediate relief.
b. Circulatory blood volume is reduced, delaying absorption form the subcutaneous tissues and muscle tissue
c. Cardiac function is enhanced by immediate action of the drug
d. Metabolism of the drug would be delayed because of decreased insulin production.

my answer was A, and I also came across this question on a review class. but when this question came up at our school review, their answer was B. My answer was still A, because B mainly refers to the IM and not IV.what do you think is the right answer. Two review instructors have different answer and i am confused. One question is important for me. can you please give some explanations on this or the rationale!!!! everybody is welcome!"

Thank you very very much for your help!