Valproic Acid
Test Mnemonic
VPA
CPT Codes
- 80164 - QTY (1)
LOINC ®
4086-5
Aliases
- Depakene
- Sodium Valproate
Performing Laboratory
Cleveland Clinic Laboratories
FDA Category
In Vitro Diagnostic
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | Sodium or Lithium heparin (Green) | Refrigerated | Do not collect in a gel separator tube. Centrifuge and transfer plasma/serum to a CCL tube and refrigerate. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | No additive (Red) | Refrigerated | Do not collect in a gel separator tube. Centrifuge and transfer plasma/serum to a CCL tube and refrigerate. | |
| 1 mL | Plasma | EDTA (Lavender) | Refrigerated | Do not collect in a gel separator tube. Centrifuge and transfer plasma/serum to a CCL tube and refrigerate. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | After separation from cells: 2 days |
| Refrigerated | After separation from cells: 7 days |
| Frozen | After separation from cells: 3 months |
Days Performed
Sun - Sat
Turnaround Time
8 hours
Methodology
| Name | Description |
|---|---|
| Homogenous Enzyme Immunoassay (HEIA) |
Reference Range
| Valproic Acid | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 99 Years | Normal | 50 - 100 | ug/mL | Years | 99 Years | Urgent | > 150 | ug/mL |
Special Info
Do not collect in a gel separator tube. Draw immediately before next dose.