| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
BARBITURATE, RANDOM URINE
Test CodeLAB364
CPT Codes
80301
Preferred Specimen
Urine, random specimen in a cleanplastic collection cup
Minimum Volume
1 mL urine
Transport Temperature
Refrigerated
Specimen Stability
Ambient: 24 hours Refrigerated: 5 days
Methodology
Enzyme Immunoassay (EIA)
Setup Schedule
Sunday-Saturday
Reference Range
Negative
Clinical Significance
Interpretive Information:
Concentrations of the following drugs produce a NEGATIVE REULT on this test
- Cutoff for positive value: 200 ng/mL
- Approximate Detection Time in Urine: 2-16 days
- Calibrator: Secobarbital
- Other Drugs that may cause a positive result (suggest confirmatory testing if clinically indicated): Mefenamic acid (nonopiod analgesic)
| Compound | Concentration (ng/mL) |
| Alphenal | 250 |
| Amobarbital | 200 |
| Aprobarbital | 200 |
| Barbital | 1,500 |
| Butabarbital | 250 |
| Buetbital | 400 |
| Butethal | 300 |
| Diallybartital | 600 |
| Pentobarbital | 600 |
| Phenobarbital | 600 |
| Secobarbital | 200 |
| Talbutal | 160 |
| Thiopental | 600 |
Concentrations of the following drugs produce a NEGATIVE REULT on this test
| Compound | Concentration Tested (ng/mL) |
| Acetaminophen | 1,000 |
| Aceylsalicylic Acid | 1,000 |
| d-Amphetamine | 1,000 |
| Benzoylecgonine | 1,000 |
| Caffeine | 100 |
| Codeine | 1,000 |
| Hydroxphenytoin (HPPH) | 500 |
| Meperidine | 1,000 |
| Methadone | 1,000 |
| Methaqualone | 1,000 |
| Morphine | 1,000 |
| Oxazepam | 500 |
| Phencyclidine | 1,000 |
| Phenytoin (DPH) | 500 |
| Propoxyphene | 1,000 |
Performing Laboratory
West Virginia University Hospital, Inc.
St. Joseph’s Hospital United Hospital Center
