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Test ID BLOD1229 Mephobarbital and Phenobarbital, Serum

Useful For

Monitoring of mephobarbital and phenobarbital therapy

Specimen Type

Serum Red


Specimen Required


Collection Container/Tube: Red top (Serum gel/SST are not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 1.2 mL

Collection Instructions:

1. Draw blood immediately before next scheduled dose.

2. Centrifuge and aliquot serum in plastic vial within 2 hours of collection.


Specimen Minimum Volume

0.7 mL

Reject Due To

Gross hemolysis Reject
Gross lipemia OK
Gross icterus OK

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Refrigerated (preferred) 14 days
  Ambient  14 days
  Frozen  14 days

Day(s) Performed

Wedneday

Report Available

3 to 9 days

Method Name

Gas Chromatography-Mass Spectrometry (GC-MS)

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

80345

G0480 (if appropriate)

Reporting Name

Mephobarbital and Phenobarbital, S

Profile Information

Test ID Reporting Name Available Separately Always Performed
MBARS Mephobarbital, S No Yes
PHBRS Phenobarbital, S No Yes

Reference Values

MEPHOBARBITAL

Therapeutic range: 1.0-7.0 mcg/mL

Toxic concentration: ≥15.0 mcg/mL

 

PHENOBARBITAL

Therapeutic range

Children: 15.0-30.0 mcg/mL

Adults: 20.0-40.0 mcg/mL

Toxic concentration: ≥60.0 mcg/mL

Test Classification

This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.

Sanford Laboratories - Fargo Additional Information:

SANFORD INTERFACE BUILD INFORMATION

Result Code Result Code Description
13072 Mephobarbital, S
13073 Phenobarbital, S