Subcutaneous insulin absorption occurs MOST quickly when injected into which area?

A. Abdomen: The abdomen has the fastest and most consistent absorption rate for subcutaneous insulin due to its rich blood supply and less subcutaneous fat. This rapid absorption is often desirable to achieve faster and more predictable absorption. B. Hips: The hips (or buttocks) have a slower absorption rate compared to the abdomen and are not the preferred site for insulin injection due to the relatively lower blood flow in this area. C. Thighs: Insulin injected into the thighs also has a slower absorption rate compared to the abdomen. This area is typically used for insulin injections when other sites need to be rotated but is not the fastest for absorption. D. Arms: The arms (specifically the posterior upper arm) provide a good site for insulin injection, with absorption generally being faster than from the thighs or hips but still slower than from the abdomen. It's a useful site for rotation but not the quickest for absorption.