VITAMIN B1 (THIAMINE) WHOLE BLOOD
General Information
HLAB/HOL Code: VTB1B
UPHSM LIS Test #: 026347
Schedule:
Testing Time: 4-6 Days
Testing Lab: Labcorp
UPHSM LIS Test #: 026347
Schedule:
Testing Time: 4-6 Days
Testing Lab: Labcorp
Specimen Info
Only 1 specimen type required, unless otherwise specified
Volume: 1.0 mL
Temperature: Frozen
Tube Type: Whole Blood (EDTA)
Collection Info:
Minimum Volume: 0.5 mL
Container: Lavender-top (EDTA) tube
Collection: Draw blood. Do not separate. Transfer to a plastic transport tube. Freeze. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Temperature: Frozen
Tube Type: Whole Blood (EDTA)
Collection Info:
Minimum Volume: 0.5 mL
Container: Lavender-top (EDTA) tube
Collection: Draw blood. Do not separate. Transfer to a plastic transport tube. Freeze. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Specimen Acceptability
Cause for Rejection:
Use of anticoagulants other than EDTA plasma
Use of anticoagulants other than EDTA plasma
Methods
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Clinical Utilities
For the assessment of thiamine deficiency
The biologically active form of the vitamin, thiamine pyrophosphate (TPP), is best measured in whole blood and is not found in measurable concentration in plasma. Plasma thiamine concentration reflects recent intake rather than body stores; therefore, whole blood is the preferred specimen for thiamine assessment.
The biologically active form of the vitamin, thiamine pyrophosphate (TPP), is best measured in whole blood and is not found in measurable concentration in plasma. Plasma thiamine concentration reflects recent intake rather than body stores; therefore, whole blood is the preferred specimen for thiamine assessment.
CPT Codes
84425
* The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding
is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
