Vitamin B12 is a topic covered in the Davis's Lab & Diagnostic Tests.

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Common Use:
To assess vitamin B12 levels to assist in diagnosing disorders such as pernicious anemia and malabsorption syndromes.

Serum collected in a gold-, red-, or red/gray-top tube.

Normal Findings:
(Method: Immunochemiluminescent assay)

AgeConventional UnitsSI Units (Conventional Units × 0.738)
Newborn–10 yr160–1,300 pg/mL118–959 pmol/L
11–17 yr260–900 pg/mL192–664 pmol/L
Adult200–1,100 pg/mL148–812 pmol/L
Values tend to decrease in older adults.

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* When formatting your citation, note that all book, journal, and database titles should be italicized* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Vitamin B12 ID - 425210 A1 - Bladh,Mickey Lynn, AU - Van Leeuwen,Anne M, BT - Davis's Laboratory & Diagnostic Tests UR - PB - F.A. Davis Company ET - 7 DB - Nursing Central DP - Unbound Medicine ER -