Active B12

FDX 75

Also known as holotranscobalamin also see Vitamin B12. Active B12 accounts for approximately 10 to 20% of total B12 levels. Considered to be a more sensitive marker than serum B12 as it degrades faster serum B12 with a short life span.

Suitable for:

Key Biomarkers

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Active B12

Available add-on panels

You will need a main test first