Vitamin B1 (Thiamine), Whole Blood
Test Mnemonic
B1WB
CPT Codes
- 84425 - QTY (1)
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Whole blood | EDTA (Lavender) | Frozen |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.6 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | 7 days |
| Frozen | 60 days |
Days Performed
5 days per week
Turnaround Time
2 - 7 days
Methodology
| Name | Description |
|---|---|
| High Performance Liquid Chromatography (HPLC) |
Clinical Info
Use for nutritional assessment of vitamin B1 (thiamine). Whole blood is the preferred specimen since approximately 80% of thiamine in whole blood is found in red blood cells.