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HelpTest Code PHEN Phenobarbital
Methodology
Chemiluminescence
Specimen Requirements
Please use preferred tube types whenever possible.
Preferred Container/Tube Type: Green Top (Lithium Heparin) Tube
Alternate Serum Separator Tube (SST)
Transport refrigerated.
Collection Instructions: Draw just prior to next dose. The usual sampling time is a trough level.
Note: Time of patient’s last dose is required.
Day(s) Test Set Up
Monday through Sunday
Reference Values
15-40 µg/mL
| Call Back Values | Results |
|---|---|
| Critical Value | ≥50 µg/mL |
Test Classification and CPT Coding
80184
Performing Laboratory
Beebe Healthcare Laboratory
Performing Location
Margaret H. Rollins Laboratory
Specimen Tube Color
| Tube Cap Color | Tube Name | |
|---|---|---|
| Preferred | Mint Green Lithium Heparin | |
| Alternate | Serum Separator Tubes (SST) |