Phenobarbital (PHENOBARB)
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| Synonyms:
| None listed |
| Specimen: | Blood, (1) Red (no preservative) top vacutainer tube.
Draw trough levels prior to dose or at least 6 hours after last dose.
Include last dose information on request. |
| Volume: | 7 mL primary tube |
| Minimum Volume: | 200 microL serum |
| Collection: | If SST (serum separator tube) is collected, spearate serum from cells within one hour of collection. Transfer serum to a tightly capped plastic aliquot tube for transport.
Serum samples may be stored up to 2 days at room temperature or refrigerated at 2-8°C; freeze for up to 3 months. |
| Rejection Criteria: | Incorrect specimen type; improper labeling. |
| Reference Range: | Therapeutic 15-40 mcg/mL Toxic- greater than 40 mcg/mL |
| Methodology: | Siemens Vista® |
| Test Use: | Phenobarbital is indicated for generalized tonic-clonic and partial seizures. It is also used for febrile seizures in children and for treatment of neonatal hyperbilirubinemia. |
| Additional Information: | If drawn in a serum separator tube, remove serum from gel within one hour. |
| Testing Includes: | |
| Testing Facility: | |