B12 vitamin Store A Retired RN About Vitamin B12 Injections Know Your Needles A Quick Nursing Guide! Today, let's understand the different types of needles and their clinical purposes Green Needle (21G) For IM injections like Dr. prescribed B12 injections. Pharmacy only gave me vials. Where do you get your needles and syringes? What size?? Where do I inject? : r B12_Deficiency B12 Injection sites + How to use B12 Shots Safely
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