Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Synonyms
B1; Thiamine Whole Blood
Specimen Type
Whole Blood
Performing Lab
Quest Diagnostics Valencia
Epic ID
Other Reference Test
Lab Test Days
Monday-Saturday
Standard TAT
2-3 Days
Collection Information
Specimen Required
1-2 mL Whole Blood
Container Type
Lavender (EDTA)
Collection Instructions
Overnight fasting is required. Protect specimen from light.
Processing Information - Lab Use Only
Transport Temperature
Frozen-Only
Specimen Stability
Room Temp: 72 Hours; Refrigerated: 5 Days; Frozen: 35 Days
Rejection Criteria
Not protected from light
Test Volume Required
2 mL Whole Blood
Minimum Test Volume
1 mL Whole Blood
Processing Instructions
Transfer whole blood to amber plastic transport tube. If amber tube is not available, wrap tube in aluminum foil to protect from light.
CPT Codes
84425
Revised
02-16-17
Initials
SL