-1643205915.png){kind=logo}
Home
HelpOrderable Name BTBAS Butabarbital, Serum
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 the next scheduled dose.
2. Within 2 hours of collection, centrifuge and aliquot serum into a plastic vial.
Useful For
Monitoring of butabarbital therapy
Method Name
Gas Chromatography Mass Spectrometry (GC-MS)
Specimen Type
Serum RedSpecimen Minimum Volume
0.6 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum Red | Refrigerated (preferred) | 28 days |
| Ambient | 28 days | |
| Frozen | 28 days |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Reference Values
Therapeutic range:
2.0-3.0 mcg/mL Hypnosis
25 mcg/mL Sedation/Sleep
>30 mcg/mL Coma
Toxic concentration: >50 mcg/mL
Cutoff concentrations by gas chromatography mass spectrometry:
Butabarbital: 0.5 ng/mL
Day(s) Performed
Thursday
Report Available
3 to 9 daysCPT Code Information
80299
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.