Which injection site is associated with the slowest absorption for insulin?

Which injection site is associated with the slowest absorption for insulin?

• A. Abdomen
• B. Upper arm
• C. Thigh
• D. Buttocks

Answer: (C)

Absorption rate for injected insulin varies with the site because of differences in blood flow and tissue characteristics. Areas with rich blood supply and thinner subcutaneous tissue, like the abdomen, let insulin enter circulation quickly. Fatty, less-perfused areas slow absorption. The buttocks typically have thicker fat layers and relatively less blood flow, making them the slowest site for insulin absorption. So among the options, the slowest absorption is seen in the buttocks, while the arm and thigh are intermediate, and the abdomen is the fastest.

Absorption rate for injected insulin varies with the site because of differences in blood flow and tissue characteristics. Areas with rich blood supply and thinner subcutaneous tissue, like the abdomen, let insulin enter circulation quickly. Fatty, less-perfused areas slow absorption. The buttocks typically have thicker fat layers and relatively less blood flow, making them the slowest site for insulin absorption. So among the options, the slowest absorption is seen in the buttocks, while the arm and thigh are intermediate, and the abdomen is the fastest.