Angles of Injection Nursing: Subcutaneous, Intramuscular, Intradermal, and Intravenous When injecting a medication or starting an IV, you'll want to pay attention to the angle of Injection to ensure the solution is delivered to the appropriate tissue. IM is delivered into the muscle at a 90 degree angle. Subq can be 90 or 45. Intradermal is 10-15 degrees, and Intravenous is 15-30 degrees. #studygram #nursing #nurse #nursingschool #injection #rn #nursingstudent #education | Registerednursern.com