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Barbiturate Confirmation, Ur
MessageChain-of-custody documentation is required for samples submitted for pre-employment, random employee testing, and forensic purposes. For other applications, use the standard request form. Please mark chain-of-custody test number on the request form.
Test Code
071290
Alias/See Also
Amobarbital; Butalbital; Pentobarbital; Phenobarbital; Secobarbital
CPT Codes
82205
Preferred Specimen
Urine (Random)
Minimum Volume
7 mL
Instructions
Urine temperature monitoring is recommended for samples to be tested for medicolegal purposes.
Transport Container
Use plastic urine drug bottle and tamper-evident seal for forensic specimen. Collection kits are available by request from the laboratory.
Transport Temperature
Maintain specimen at room temperature. Stability: If arrival at lab will extend beyond 7 days then refrigerate.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Quantity not sufficient for analysis; improper specimen (serum, plasma, blood); incomplete chain-of-custody documentation; incomplete specimen identification; improper or missing tamper evident seals
Methodology
Gas chromatography/mass spectrometry (GC/MS)
