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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Mephobarbital

Test Code(s): PENO / PHEN

CPT Code(s): 80184

Methodology: Fluorescence Polarization Immunoassay

Clinical Significance: Anticonvulsant, sedative

Request Form: UWHC Laboratory Request Form (UWH 1289220, 4004202); Write in test if not on form.

Days Performed: Daily, 24 hours.

Turnaround Time: Stat: 1 hour.
Routine: 4 hours.


Specimen Requirements

Specimen: Blood

Collection Instructions: Collect specimen within 30 minutes prior to the morning dose.  Specimens collected in red cap with yellow ring (SST) tubes are not acceptable.

Collection Container: Preferred: Red top

Collection Volume: Preferred: 2 mL
Pediatrics: 0.3 mL

Sample Analyzed: Serum

Volume Required: Preferred: 1 mL
Pediatrics: 0.15 mL

Specimen Processing: Centrifuge.  Transfer cell-free serum to plastic vial.  Refrigerate.

Specimen Transport: Transport specimen to UWHC Core Laboratory (B4/220). Transport with coolant pack if coming from outreach location.

Unacceptable Criteria: Specimens collected in red cap with yellow ring (SST) tubes are not acceptable.


Interpretation

Critical Calls: View

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