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Boca Biolistics Reference Laboratory > Test Menu > V > Vitamin B12

Vitamin B12

Abbreviation

B12

Transport Temp

2-8 C (ice packs)

Stability

  • 2-8 C up to 7 days
  • -20C up to 6 months

Minimum Vol

0.5 mL

Alternative Specimens

Plasma (lithium heparin)

Reference Ranges

213-816 pg/mL

Collection Instructions

Routine venipuncture

Transport Container

Draw tube or plastic pour off tube

Methodology

Chemiluminescent microparticle Intrinsic Factor assay

Clinical Significance

Decreased-iron deficiency, normal near-term pregnancy, vegetarianism, partial gastrectomy/ileal damage, celiac disease, use of oral contraceptives, parasitic competition,pancreatic deficiency, treated epilepsy, advancing age. Increased-renal failure, liver disease, myeloproliferative diseases.

Preferred Specimen

Serum

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