Barbiturates Confirmation, Urine
Test Mnemonic
UBARBC
CPT Codes
- G0480 - QTY (1)
Includes
- Pentobarbital
- Phenobarbital
- Butalbital
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | 1 month |
| Frozen | 3 years |
| Ambient | 1 week |
Days Performed
Tue, Thu, Sat
Turnaround Time
2 - 5 days
Methodology
| Name | Description |
|---|---|
| Quantitative Liquid Chromatography - Tandem Mass Spectrometry |
Reference Range
Clinical Info
Cutoff concentrations for all analytes: 50 ng/mL. For medical purposes only, not for forensic use. The absence of expected drug(s) and/or drug metabolite(s) may indicate noncompliance, inappropriate timing of specimen collection relative to drug administration, poor drug absorption, diluted/adulterated urine, or limitations of testing. The concentration value must be greater than or equal to the cutoff to be reported as positive.