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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

PeaceHealth Laboratories