New York State Emergency Medical Technician (EMT) Practice Exam

When using an auto-injector to administer epinephrine, where is the primary injection site?

1. Medial part of the buttocks

2. Lateral portion of the arm

3. Lateral portion of the thigh

4. Medial portion of the thigh

The correct answer is: Lateral portion of the thigh

The primary injection site for administering epinephrine using an auto-injector is the lateral portion of the thigh. This area is preferred due to its large muscle mass and the ease of access for rapid absorption into the bloodstream. When epinephrine is injected into the thigh, it allows for efficient and quick delivery of the medication, which is critical in emergency situations like anaphylaxis. Injecting into the thigh also minimizes the risk of hitting major nerves or blood vessels, making it a safer and more effective choice. Moreover, the injection should be made at a 90-degree angle to ensure that the medication is delivered properly into the muscle tissue, thus maximizing its efficacy in reversing severe allergic reactions. Understanding the preferred injection site helps ensure that EMTs can react swiftly and correctly in emergencies, improving patient outcomes.