Phenobarbital
| Order Code: | PHEB |
| Epic Lab Code: | LAB30 |
| Order Form: | A-1a Therapeutic Drug Analysis or Epic Req |
Chemistry
6240 RCP
356-3527
6240 RCP
356-3527
Specimen:
Plasma
Collection Medium:
 |
| Plasma Separator Tube |
Alternate
Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
2 mL; light green top tube or ONE microtainer.
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Analytic Time:
1 hour (upon receipt in laboratory)
Reference Range:
Therapeutic range: 15-40 ug/mL
Toxic concentration > 60 ug/mL
Coma without reflexes may occur at concentrations > 100 ug/mL.
Test
Limitations:
Icterus: No significant interference up to an I index of 66
(approximate bilirubin concentration: 60 mg/dL).
Hemolysis: No significant interference up to an H index of 1000
(approximate hemoglobin concentration: 1000 mg/dL).
Lipemia (Intralipid): No significant interference up to an L index of
1000 (approximate triglyceride concentration: 2000 mg/dL). There is
poor correlation between turbidity and triglycerides concentration.
Rheumatoid factor: No significant interference up to a concentration of
180 IU/mL.
Mephobarbital (greater than 100%) and amobarbital (greater than 20%)
show significant cross-reactivity.
As with any assay employing mouse antibodies, the possibility exists
for interference by human anti-mouse antibodies (HAMA) in the sample,
which could cause falsely elevated results.
Methodology:
Kinetic Interaction of Microparticles in Solution (KIMS)
CPT Code:
82205
See Additional Information:
Chemistry Critical Lab Values
Chemistry Critical Lab Values