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Vitamin B1 (Thiamine), Whole Blood

CPT Code(s): 84425
Specimen Required: Patient Preparation:
Collect:Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).
Specimen Preparation:Protect from light within one hour of collection and during storage and shipment. Transfer 3 mL whole blood to an RDL Amber Transport Tube. (Min: 0.6 mL)
Storage/Transport Temperature:CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Stability:Ambient: Unacceptable; Refrigerated: 4 hours; Frozen: 6 months
New York DOH Approval Status: This test is New York DOH approved.
Aliases:
  • B1 VitaminTDPThiamin PyrophosphateThiamineThiamine DiphosphateTPPVITB1
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