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Vitamin B1 (Thiamine), Whole Blood

Mnemonic:    [Vit B1 WB]
Name:    Vitamin B1 (Thiamine), Whole Blood
Specimen:    3 mL whole blood from a Lavender top tube

Do NOT centrifuge the sample.

Pour the WHOLE BLOOD sample into an amber transport container to protect the sample from light. Freeze the sample. The sample MUST be frozen within 4 hours of collection.

NOTE: Protect from light within one hour of collection and during storage and shipment.

Unacceptable Conditions: Any specimen other than whole blood. Glass tubes. Clotted or non-frozen specimens.
Minimum Spec:    1 mL
Transport Temp:    Critical Frozen sample. Freeze immediately and transport frozen.
Spec Stability:    Stable 4 hours refrigerated
Ref Lab/Code:    ARUP 0080388
  Method:    High Performance Liquid Chromatography (HPLC)
Note:    Note: Whole blood is the preferred specimen for thiamine assessment. Approximately 80% of thiamine present in whole blood is found in red blood cells.
Processing Info:    Submit frozen whole blood specimen in an amber tube.

Separate specimens must be submitted when multiple tests are ordered.