Specimen:
Collect
- One Red Top
Submit
- 2 mL (Min:1 mL) Serum . Submit Refrigerated. Submit in a Standard Transport Tube.
Special Handling
- Separate from cells within 2 hours of collection
- Patient Preparation: Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.
Rejection Criteria
- Light blue (citrate), gray (oxalate), green (heparin), K2EDTA plasma, tubes that contain liquid anticoagulant, or gel separator tubes.
Stability
Ambient: 1 Day(s); Refrigerated: 1 Week(s); Frozen: 1 Month(s); Incubated: Unacceptable
Methodology
- Quantitative Enzyme Multiplied Immunoassay Technique
Performed
Tuesday, Wednesday, Thursday, Friday, Saturday
Reported
2-5 Day(s)
CPT Codes
- 80164
- 80165
Interpretive Data
Please see report for interpretive data.
Components
- 90235 - VAL ACID, FREE
- 90236 - VAL ACID, TOTAL
- 90237 - VAL ACID, %FREE
Last Updated: February 6, 2025 @ 10:13 am
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