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Test Code BUTAS Butalbital, Serum

Reporting Name

Butalbital, S

Useful For

Monitoring butalbital therapy

Method Name

Gas Chromatography-Mass Spectrometry (GC-MS)

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum Red


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

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

Submission Container/Tube: Plastic vial

Specimen Volume: 1.5 mL

Collection Instructions:

1. Draw blood immediately before next scheduled dose.

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


Specimen Minimum Volume

0.6 mL

Specimen Stability Information

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

Reject Due To

Gross hemolysis Reject
Gross lipemia OK
Gross icterus OK

Reference Values

Therapeutic concentration: <10 mcg/mL

Toxic concentration: ≥10 mcg/mL

Day(s) Performed

Thursday

CPT Code Information

80299

LOINC Code Information

Test ID Test Order Name Order LOINC Value
BUTAS Butalbital, S 6895-7

 

Result ID Test Result Name Result LOINC Value
8427 Butalbital, S 6895-7

Test Classification

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

Report Available

3 to 9 days

Forms

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