Vitamin B1 (Thiamine)
Order Code: VTB1B
Epic Lab Code: LAB125
Order Form: A-1a Miscellaneous Request or Epic Req
Commercial Mail-out Laboratory
6240 RCP
356-3527
Specimen:
Whole Blood
Collection Medium:
Green top tube 4 mL (Na Heparin)
Alternate Collection Media:
Lavender top tube 3 mL (EDTA), Light Green top tube (Lithium Heparin), Pink top tube
Minimum:
Adult preferred minimum: 3 mL whole blood from green top (NA Heparin) tube. Absolute minimum: 1 mL whole blood from green top (NA Heparin) tube.
Rejection Criteria:
Any specimen other than whole blood. Glass tubes. Clotted or non-frozen specimens.
Delivery Instructions:
Wrap specimen in aluminum foil to protect from light. Deliver to laboratory immediately after collection.
Specimen Instructions:
Whole Blood is sample of choice.
Analytic Time:
6 days upon receipt at reference laboratory
Reference Range:
70-180 nmol/L
Interpretive Data:
The concentration of thiamine diphosphate (TDP), the primary active form of vitamine B1, is measured in this assay. Approximately 90% of vitamine B1 present in whole blood is TDP. Thiamine and thiamine monophosphate, which comprise the remaining 10%, are not measured.
Methodology:
High Performance Liquid Chromatography
CPT Code:
84425
 
See Additional Information:
Specimens Requiring Immediate Delivery