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Test Name

Vitamin B12 Binding Capacity, Unsaturated (Transcobalamin)

CPT Code(s)

82608

Methodology

Radiobinding Assay

Reference Range(s)

Adults 650-1340 pg/mL

Clinical Significance

Vitamin B12 Binding Capacity, Unsaturated (Transcobalamin), binds and transports vitamin B12 in the circulation. Increased concentrations are associated with patients with myeloproliferative disorders. Decreased concentrations are seen in individuals with megaloblastic anemia or Transcobalamin deficiency.

Alternative Name(s)

Transcobalamin, B12 Binding Capacity

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Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

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Vitamin B12 Binding Capacity, Unsaturated (Transcobalamin)
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