Injection Techniques Step by Step Guide 1. Intramuscular Injection (IM) 90 Angle Needle Position: Perpendicular to the skin (90 angle) Target Site: Muscle layer Common Sites: Deltoid, Vastus Lateralis, IM injection sites (intramuscular injections) made easy for nursing school students, nurses, and more! This includes a quick summary of the IM injection sites, along with some details such as landmarks and How to Self Inject Vitamin B12 at Home The Sanctuary Wellness Institute IM Injection Intramuscular Injection What is IM Injection? Injection given deep into the muscle to ensure fast absorption of medication. .. . Common IM Injection Sites Deltoid Best Vitamin B12 Injection Sites MedHealth 360