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Confirming or excluding interference Discordance between the result and the clinical picture raises the possibility of assay interference
Never inject into areas without sufficient subcutaneous fat, such as very lean abdominal areas or over bone
But as with any injection, a few mild effects are possible: Temporary redness or swelling at the injection site Mild nausea or digestive shifts Headache or light dizziness A brief boost in energy or restlessness (common if you're sensitive to B12) Bright yellow or orange urinetotally normal, just your body clearing excess B12 If anything feels off or persists, check in with your provider
Doctors need to diagnose a Vitamin B12 deficiency or a condition that needs it
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