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The fix: inject a small amount of air (0.3-0.5 mL) into the vial first before drawing water into the syringe
Withdraw the needle and apply pressure to the site with a cotton ball or bandaid
A larger syringe (3mL or 5mL) with a longer, thicker needle (e.g., 21G) is ideal for drawing the diluent from its vial
Cobalamin is usually given via an injection under the skin
doi: 10.1093/ajcn/nqaa432, 26
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