What is the typical angle of injection for a subcutaneous injection?

The typical angle of injection for a subcutaneous injection is indeed 45° or 90°. This range is chosen based on the amount of subcutaneous tissue available and the type of needle used. Subcutaneous tissue, which is the layer of fat beneath the skin, absorbs medication at a slower rate than other routes, making the angle of injection crucial for proper administration.

Using a 45° angle is often recommended for patients with less subcutaneous fat, as this helps ensure that the needle penetrates sufficiently to reach the subcutaneous layer without taking the risk of intramuscular injection. In contrast, a 90° angle is typically utilized for individuals with more body fat, ensuring that the medication is delivered into the subcutaneous space effectively.

Collectively, these angles promote effective medication absorption while minimizing discomfort and risk of complications associated with improper injection techniques. Proper technique enhances the efficacy of the medication while also prioritizing patient safety and comfort.