Vitamin B12

Vitamin B12 is a topic covered in the Guide to Diagnostic Tests.

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Test/Range/Collection

Vitamin B12, serum or plasma

170–820 pg/mL

[121–600 pmol/L]

SST, red, green

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Serum vitamin B12 specimens should be frozen if not analyzed immediately.

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Test/Range/Collection

Vitamin B12, serum or plasma

170–820 pg/mL

[121–600 pmol/L]

SST, red, green

$$

Serum vitamin B12 specimens should be frozen if not analyzed immediately.

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