| 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 # |
BENZODIAZEPINE WITH CONFIRMATION, RANDOM URINE
Test CodeLAB1231445
CPT Codes
80301
Includes
Urine benzodiazepine screen and urine creatinine. Auto-reflex to benzodiazepine confirmation by mass spectrometry if screen is positive.
Adulteration testing for urine creatinine is provided at no-charge and included in the report
Adulteration testing for urine creatinine is provided at no-charge and included in the report
Preferred Specimen
Urine, random specimen in a sterile plastic cup. No additives or preservatives.
Pediatric: Urine, random specimen in a sterled plastic cup. No additives or preservatives.
Pediatric: Urine, random specimen in a sterled plastic cup. No additives or preservatives.
Minimum Volume
1mL Urine
Instructions
Required For Testing: 0.5 mL
Transport Temperature
Refrigerated
Specimen Stability
Ambient: 24 hours Refrigerated: 5 days Frozen: Not specified
Methodology
Enzyme Innumoassay (EIA)
Setup Schedule
Sunday- Saturday
Reference Range
Urine Benzodiazepine: Negative
Random Urine Creatinine: No Reference Range Established
Random Urine Creatinine: No Reference Range Established
Clinical Significance
Interpretive Information
Cutoff for positive value: 200 ng/mL
Approximate Detection Time In Urine: 3-8 days
Calibrator: Oxazepam
Lowest Drug Concentrations producing a POSITIVE RESULT
Concentrations of the following drugs produce a NEGATIVE RESULT on this test
All results require interpretation with the patient’s clinical context (ie, disease states) in mind. Creatinine: results <30 mg/dL generally suggest that the specimen is overly dilute. This can result in falsely low drug screen results
Cutoff for positive value: 200 ng/mL
Approximate Detection Time In Urine: 3-8 days
Calibrator: Oxazepam
Lowest Drug Concentrations producing a POSITIVE RESULT
| Compound | Concentration Tested (ng/mL) |
| Alprazolam | 85 |
| Alprazolam glucuronide | 200 |
| 7-Aminoclonazepam | 2,500 |
| Bromazepam | 170 |
| Clorazepate | 85 |
| Chloridazepoxide | 750 |
| Clobazam | 110 |
| Clonazepam | 150 |
| Delorazepam | 110 |
| Desmethyldiazepam | 75 |
| Diazepam | 70 |
| Flunitrazepam | 95 |
| Flurazepam | 100 |
| Lorazepam | 650 |
| Lormetazepam | 225 |
| Medazepam | 170 |
| Nitrazepam | 175 |
| Norfludiazepam | 85 |
| Oxazepam glucuronide | 40,000 |
| Prazepam | 95 |
| Temazepam | 115 |
| Temazepam glucuronide | 7,500 |
| Triazolam | 90 |
Concentrations of the following drugs produce a NEGATIVE RESULT on this test
| Compound | Concentration Tested (ng/mL) |
| Acetaminophen | 1,000 |
| Acetylsalicylic Acid | 1,000 |
| Amphetamine | 1,000 |
| Caffeine | 100 |
| Codeine | 1,000 |
| Dextromethorphan | 1,000 |
| Diphenhydramine | 500 |
| Fluoxetine | 500 |
| Lorazepam glucuronide | 50,000 |
| Methadone | 1,000 |
| Morphine | 200 |
| Norfluoxetine | 500 |
| Norsertraline | 300 |
| Oxaprozin | 50 |
| Paroxetine | 500 |
| Phenycyclidine | 1,000 |
| Propoxyphene | 1,000 |
| Secobarbital | 1,000 |
| Sertraline | 500 |
All results require interpretation with the patient’s clinical context (ie, disease states) in mind. Creatinine: results <30 mg/dL generally suggest that the specimen is overly dilute. This can result in falsely low drug screen results
Performing Laboratory
West Virginia University Hospital, Inc.
