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| 33350:PHENOBARBITAL | |||||||||
| Alias Names: | Luminal | ||||||||
| Methodology: | Immunoturbidimetric Assay | ||||||||
| Edit Date: | 6/11/2010 | ||||||||
| Performed: | Daily | ||||||||
| Released: | Same day as tested | ||||||||
| CPT Code: | 80184 | ||||||||
| Specimen Collection Details | |||||||||
| Collection: | One 7.5 mL serum separator tube (SST). Also acceptable: One 4 mL green top tube (heparin) or one 4 mL lavender top tube (EDTA). | ||||||||
| Handling: | Centrifuge SST within 2 hours of collection and transport in original tube. Specimen drawn in green or lavender top tube must be centrifuged within 2 hours of collection and the plasma separated into a plastic vial for transport. Refrigerate. Note date and time of last dose. Freeze if specimen cannot be assayed within 48 hours. Allow no more than one freeze/thaw cycle. | ||||||||
| Stability: | 8 hours ambient, 48 hours refrigerated, or 2 months frozen. | ||||||||
| Standard Volume: | 0.5 mL serum or plasma. | ||||||||
| Minimum Volume: | 150 µL serum or plasma. | ||||||||
| Transport: | Refrigerated if received in laboratory within 48 hours of collection, or frozen on dry ice. | ||||||||
| Comments: | Refer to the drug manufacturer’s package insert or the Physicians’ Desk Reference for proper dosage and for phenobarbital measurement sampling times. | ||||||||
| Rejection Criteria: | Specimen frozen and thawed more than once; refrigerated specimen received in laboratory more than 48 hours after collection. | ||||||||
| 15-40 µg/mL
Critical: ≥ 60 µg/mL |
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