B12 injections training course 300 One day course perscriber set up for prescriptions with our nurse insurance referral learning how to take blood pressures included each injection would cost you around How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust Common IM Injection Sites Deltoid (Upper Arm) Location: About 23 finger widths below the acromion process (shoulder bone). Best for: Vaccines and small volume injections (1 mL). Notes: Easy to access but limited Subcutaneous (SC) and Intramuscular (IM) Injections Must Knows for Subcutaneous administration: Pinch skin with non dominant hand and hold syringe with dominant hand Always inject: 2 inches away from umbilicus (for abdomen) 3 inches How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust