route of administration of vitamin b12 injection How to Give Injections at Home to Yourself · PA Relief How to Inject Vitamin B12
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Feb 2015;9(2):501-506

Its because it helps the body absorb it better
It's typically diagnosed through a complete blood count (CBC) and peripheral blood smear, which reveals the enlarged red blood cells

Aspirate to make sure youre not in a vessel

For B12 injections, needles with lengths between 1 to 1.5 inches are often recommended
Turner, H
