An intramuscular (IM) injection is administered at a 90-degree angle to the skin. This ensures the medication is delivered deep into the muscle tissue, where it can be absorbed quickly.
The specific angle may vary slightly depending on the individual's body size and the chosen injection site. However, 90 degrees is the standard angle for most IM injections.
Examples of IM injection sites:
- Deltoid muscle: The upper arm, used for vaccines and other medications.
- Ventrogluteal muscle: The buttock, considered the safest and most reliable site for IM injections.
- Vastus lateralis muscle: The thigh, commonly used for infants and young children.
