Alert

Vitamin B1

Tube Type = Lavender Top

Tube Type

Test ID   LAB745
EPIC Order
   VITAMIN B1, WHOLE BLOOD
CPT Code(s)   84425
Group/Individual Test   Individual
Laboratory   Core Referral Testing
Tube Station   30
Specimen Routine:
4 mL blood/lavender top tube. Protected from light.
see important Comments 
  Micro: 1.5 mL blood. Protected from light.
Availability Routine: Reference Laboratory - Mayo Clinic Laboratories
Turnaround Time   4-7 days
Reference Range Normal: see separate report
     
Comments
  • Fasting (12-14 hours), infants-prior to next feeding) recommended sample.
  • Draw a separate tube when collecting with other vitamins.
  • Sample must be processed immediately after collection.

Reviewed by J. Carr on December 10, 2023

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514