What is the rationale for rotating injection sites when giving insulin?

What is the rationale for rotating injection sites when giving insulin?

• A. To prevent lipodystrophy and ensure even absorption
• B. To accelerate absorption by injecting in the same spot
• C. To shorten action
• D. To increase risk of infection

Answer: (A)

Rotating insulin injection sites protects the subcutaneous tissue from lipodystrophy, which can disrupt how insulin is absorbed. Repeated injections in the same tiny area can cause lipohypertrophy (thickened, lumpy tissue) or lipoatrophy (loss of fat), and these changes make absorption unpredictable. When absorption is erratic, blood sugar control becomes unreliable, with unexpected highs or lows after meals. By moving injections around different sites and even varying within a larger area over time, the tissue has a chance to recover and insulin absorption stays more consistent. Remember that the abdomen often provides faster absorption, while other sites work more slowly, so rotating helps balance overall absorption. The goal isn’t to speed up absorption in one spot or to increase infection risk; the aim is steady, predictable insulin delivery by preserving healthy tissue.

Rotating insulin injection sites protects the subcutaneous tissue from lipodystrophy, which can disrupt how insulin is absorbed. Repeated injections in the same tiny area can cause lipohypertrophy (thickened, lumpy tissue) or lipoatrophy (loss of fat), and these changes make absorption unpredictable. When absorption is erratic, blood sugar control becomes unreliable, with unexpected highs or lows after meals. By moving injections around different sites and even varying within a larger area over time, the tissue has a chance to recover and insulin absorption stays more consistent. Remember that the abdomen often provides faster absorption, while other sites work more slowly, so rotating helps balance overall absorption. The goal isn’t to speed up absorption in one spot or to increase infection risk; the aim is steady, predictable insulin delivery by preserving healthy tissue.