- YVPFT
Valproic Acid, Free and Total
Specimen:
Test Code
YVPFT
Specimen Name
Valproic Acid, Free and Total
Collect
Plain Red Top-Serum
Submit
2 mLs (MIn: 1 mL) Serum, Refrigerated.
Special Handling
Timing of specimen collection: Predose (trough) draw at steady-state concentration. Let specimen clot at room temperature. Separate serum from cells within 2 hours of collection. Transfer serum to a transport tube.
Rejection Criteria
Light blue (citrate), gray (oxalate), green (heparin), K2EDTA plasma, tubes that contain liquid anticoagulant, or gel separator tubes.
Stability
After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 month
Methodology
Quantitative Enzyme Immunoassay (EIA)
Performed
Sunday - Saturday
Reported
1-4 days
CPT Codes
- 80164
- 80165
Components
—
Additional Information
Preferred test for therapeutic drug management in patients with renal failure or conditions that may alter albumin concentrations.
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Common Lab Definitions
- Serum
- Plasma
- STT