Test Overview
Test Methodology

Gas Chromatography-Mass Spectrometry (GC-MS)

Test Usage

Assessing toxicity or monitoring possible abuse.

Reference Range *

< 10 mcg/mL

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Concentration at which toxicity occurs varies and should be interpreted in light of clinical situation.

Test Details
Days Set Up
Monday
Analytic Time

2 - day

Soft Order Code
BBT
MiChart Code
Butalbital (Fiorinal), Level
Synonyms
  • Fiorinal
  • BBT
  • BUTALBITAL (FIORINAL), SERUM
Laboratory
Sendout
Reference Laboratory
Mayo BUTAS (8427)
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in a red top tube; do not use SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate within 2 hours of collection.

Special Handling

Must arrive in lab or aliquot and refrigerate within 2 hours. Red top tube only

Red Top Tube
Normal Volume
1.5 mL serum
Minimum Volume
0.6 mL serum
Additional Information

Butalbital (Fiorinal) is a short to intermediate-acting barbiturate usually administered as a sedative, analgesic mixture with drugs such as acetominophen, aspirin, codeine, caffeine, etc. Toxic mainifestations can include respiratory depression, acidosis and hypoxia, hypothermia, hypotension, cardiac depression, shock, and coma. Test sent to Mayo Medical Laboratories.

Billing
CPT Code
80345
Fee Code
AA214
LOINC
3418-1
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