Does size matter? Historically, a bigger needle gauge was considered better to prevent damage to red blood cells. However, our recent guidelines recommend using smaller gauge needles (2325 G) for all B12 Injection Needle Size B12 Syringes Is b12 im or sq Is this the right size needle for im injections? : r B12_Deficiency B12 Shots Needle Size
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what size needle should i use for b12 injection How To Do An IM (Intramuscular) Injection