VITAMIN B1 (THIAMINE), WHOLE BLOOD

Specimen Required
Draw blood in a green top sodium heparin tube. Transfer 2.0 mL whole blood (1.0 mL minimum) to an amber screw-capped plastic vial and send frozen. PROTECT FROM LIGHT. CRITICAL FROZEN.

Alternate Specimen
Whole blood: EDTA

Rejection Criteria
Specimen not frozen; Specimen not protected from light.

Methodology
High Performance Liquid Chromatography

Stability
Room Temperature: Unacceptable; Refrigerated: Unacceptable; Frozen: 2 months

Reference Range
38-122 ug/L

Performed
Setup: Monday-Thursday
Reported: 1-3 days

Turnaround Time3 days
Test CodeVB1WB
CPT-4 Code (s)
84425 RUO
LOINC Codes
2998-3

Warde
Medical
Laboratory