Gas Chromatography-Mass Spectrometry (GC-MS)
Assessing toxicity or monitoring possible abuse.
< 10 mcg/mL
Concentration at which toxicity occurs varies and should be interpreted in light of clinical situation.
2 - day
- BUTALBITAL (FIORINAL), SERUM
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.
Must arrive in lab or aliquot and refrigerate within 2 hours. Red top tube only
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.