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HelpTest Code PBARB Phenobarbital Level
Additional Codes
| EPIC | LAB4160 |
Synonyms
- Barbita
- Luminal
- Solfoton
Clinical Significance
Phenobarbital is indicated for the treatment of status epilepticus, febrile seizures and seizure disorders (grand mal and psychomotor), except absence (petit mal) siezures. Phenobarbital therapy is monitored for suspected inadequate dose or toxicity.
Source: Beckman Coulter Unicel, PHE IFU. REF #469785 4/22/15
Methodology
Particle enhanced turbidimetric inhibition immunoassay (Beckman Coulter UniCel DxC 660i)
Sample Type
| Preferred Sample Type | |
|---|---|
| Light green top - Plasma | |
| Acceptable Sample Type(s) | |
|---|---|
| Dark green top - Plasma | |
| Yellow top - Serum | |
| Red top - Serum | |
Centrifuge: Yes
Specimen Minimum Volume
0.3 mL
Specimen Stability
| Temperature | Time |
|---|---|
| Ambient (18-25°C) | 8 hours |
| Refrigerated (2-8°C) (store) | 48 hours |
| Frozen (-15 to -20°C) | 1 month |
Separate plasma or serum from cells within 2 hours.
Reference Ranges
| Therapeutic Range |
|---|
| 15.0 - 40.0 ug/mL |
| Critical Value |
|---|
| >45.0 ug/mL |
| Technical Range |
|---|
| 5.0 - 80.0 ug/mL |
Rejection Criteria
| Hemolysis | N/A |
|---|---|
| Icterus | N/A |
| Lipemia | N/A |
Availability
| Performed | STAT |
|---|---|
| 24/7 | Yes |
Performing Laboratory
MultiCare Yakima Memorial Hospital Laboratory
Lab Department
Chemistry
CPT Code
82205
LOINC
3948-7 PHENobarbital [Mass/Vol]