Vitamin B1 (Thiamine), Whole Blood
Test Mnemonic
B1WB
CPT Codes
- 84425 - QTY (1)
Performing Laboratory
Cleveland Clinic Laboratories
FDA Category
Laboratory Developed Test
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) |
Reference Range
| Vitamin B1 (TDP), Whole Blood | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 17 Years | Normal | 84 - 213 Comment: Reference ranges for this patient's age group have not been established. These reference ranges reflect verified or established ranges for the adult population. Interpret these ranges with caution using the clinical context and additional reference resources. | nmol/L | 18 Years | 99 Years | Normal | 84 - 213 | nmol/L |
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.