Active B12
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 than serum B12 with a short life span making it a more sensitive indicator or B12 deficiency.
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FDX 21
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FDX 22
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FDX 25
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FDX 26
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FDX 27
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FDX 28
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FDX 29
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FDX 32
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FDX 33
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FDX 34
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FDX 401
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FDX 403
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FDX 404
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FDX 405
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