What angle range is used for subcutaneous injections?

• A. 15-30 degrees
• B. 45-90 degrees depending on patient's body size
• C. 60-120 degrees
• D. 0-15 degrees

Answer: (B)

Subcutaneous injections go into the fatty layer just beneath the skin, so you aim the needle at a shallow angle to keep the medicine in that tissue and not into muscle. Because people vary in how much fat they have, the angle isn’t fixed. For someone with little subcutaneous tissue, use a shallower angle around 45 degrees to stay in the fat; for someone with more tissue, you can angle more toward 90 degrees to reach the subcutaneous layer properly. That’s why the typical guidance is a range of 45 to 90 degrees, adjusted for the individual’s body size and tissue thickness. Angles far outside this range, like 60-120 degrees, aren’t standard for subcutaneous delivery, and very shallow angles (0-15 degrees) wouldn’t reliably deposit medication in the subcutaneous layer.