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HelpTest Code VALP Valproic Acid, Total, Plasma
Additional Codes
LAB24
Collection Method
Venous collection
Minimum Volume
0.5ml
Container
Lt Green / Plasma Separator / Lithium Heparin
Acceptable Specimens
Serum:
- Gold Top SST
- Red Top
Plasma:
- Light Geen Top (lithium heparin)
Reference or Target Ranges
50 – 100 μg/mL
Reportable Units
μg/ml
Critical Value
trough ≥ 150 µg/ml
Reasons for Rejection
| Hemolysis Threshold | 500 mg/dL |
| Icterus Threshold | 30 mg/dL |
| Lipemia Threshold | 500 mg/dL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type |
Specimen Stability
| Ambient | 2 days |
| Refrigerated (4°C to 8°C) | 7 days |
| Frozen(-40°C to 0°C) | 3 months |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time | Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | CPH Chemistry |
| Methodology/Method Description | Roche Cobas |
CPT Codes
80164
Last review/edit date
Feb 2024
Special Collection Instructions
Draw trough levels immediately prior to next dose.
Aliases
Depakote, VPA