NHA Certified Clinical Medical Assistant (CCMA)Clinical Patient CareEasy
A medical assistant is preparing to administer a subcutaneous injection. At what angle should the medical assistant insert the needle?
- A30-degree angle
- B90-degree angle
- C15-degree angle
- D45-degree angle
Show answer & explanationAnswer & explanation
Correct answer: D. 45-degree angle
Subcutaneous injections are administered into the fatty tissue layer just beneath the skin. The standard angle for insertion is 45 degrees, which ensures the medication reaches the subcutaneous tissue without penetrating too deeply into the muscle layer.
Why the other options are wrong
- A. A 30-degree angle is generally too shallow for reliable subcutaneous penetration, especially if the patient has significant subcutaneous tissue.
- B. A 90-degree angle is used for intramuscular injections, where the goal is to reach deep muscle tissue.
- C. A 15-degree angle is typically used for intradermal injections.
Subcutaneous Injection Angle
Subcutaneous injections are administered into the fatty tissue layer beneath the skin at a 45-degree angle to ensure proper medication delivery without reaching the muscle.
- Into fatty tissue.
- Standard 45-degree angle.
- Prevents muscle penetration.
Memory trick: ID's 15, SC's 45, IM's 90, IV's Variable.