Specimen Requirements
Title
Phenobarbital, Free
Specimen Requirement
Collect plain red top, centrifuge within 2 hours of collection and transfer 1.0 mL serum to a screw top plastic vial, indicate sample type on tube and send.
Methodology
High Performance Liquid Chromatography
Stability
Room temp: 48 hours, Refrigerated: 7 days, Frozen: 14 days
Reference Range
The reference range is determined by the performing laboratory and will show on the report.
Turnaround
1-3 days performed Monday-Friday
Clinical Use
Test Code
FPHEN