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HelpTest ID CDAUX Drug Abuse Panel with Confirmation, Chain of Custody, Random, Urine
Specimen Required
Container/Tube: Chain-of-Custody Kit (T282) containing the specimen containers, seals, and documentation required
Specimen Volume: 30 mL
Collection Instructions: Collect specimen in the container provided, seal, and submit with the associated documentation to satisfy the legal requirements for chain-of-custody testing.
Additional Information: Submitting less than 30 mL will compromise our ability to perform all necessary testing.
Forms
1. Chain of Custody Request is included in the Chain-of-Custody Kit (T282).
2. If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.
Useful For
Detecting drug abuse involving amphetamines, barbiturates, benzodiazepines, cocaine, ethanol, marijuana, opiates, and phencyclidine
This test is intended to be used in a setting where the test results can be used definitively to make a diagnosis.
Chain of custody is required whenever the results of testing could be used in a court of law. Its purpose is to protect the rights of the individual contributing the specimen by demonstrating that it was under the control of personnel involved with testing the specimen at all times; this control implies that the opportunity for specimen tampering would be limited.
Additional Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| COCH | Chain of Custody Processing | No | Yes |
| ADLTX | Adulterants Survey, CoC, U | Yes | Yes |
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| AMPHX | Amphetamines Confirmation, CoC, U | Yes | No |
| OPATX | Opiate Confirmation, CoC, U | Yes | No |
| BARBX | Barbiturates Confirmation, CoC, U | Yes | No |
| COKEX | Cocaine and metabolite Conf, CoC, U | Yes | No |
| ETOHX | Ethanol, CoC, U | Yes | No |
| PCPX | Phencyclidine Confirmation, CoC, U | Yes | No |
| THCX | Carboxy-THC Confirmation, CoC, U | Yes | No |
| BNZX | Benzodiazepines Conf, CoC, U | Yes | No |
Testing Algorithm
Testing begins with screening assays. If alcohol (ethanol) screen is positive, then the gas chromatography-flame ionization detector confirmation with quantification will be performed at an additional charge. If amphetamines, barbiturates, benzodiazepines, cocaine and metabolites, opiates, phencyclidine, or tetrahydrocannabinol metabolite screen is positive, then the gas chromatography-mass spectrometry confirmation with quantification will be performed at an additional charge. Amphetamines and opiates that screen positive will be quantified with liquid chromatography-tandem mass spectrometry at an additional charge.
Adulterants testing will be performed on all chain of custody urine samples as per regulatory requirements.
Method Name
Alcohol Screened by an Enzymatic Assay/All Others Screened by Immunoassay
Reporting Name
Confirmed Drug Abuse Panel, CoC, USpecimen Type
UrineSpecimen Minimum Volume
15 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 7 days |
| Frozen | 14 days |
Reference Values
Negative
Screening cutoff concentrations
Amphetamines: 500 ng/mL
Barbiturates: 200 ng/mL
Benzodiazepines: 100 ng/mL
Cocaine (benzoylecgonine-cocaine metabolite): 150 ng/mL
Ethanol: 10 mg/dL
Opiates: 300 ng/mL
Phencyclidine: 25 ng/mL
Tetrahydrocannabinol carboxylic acid: 50 ng/mL
This report is intended for use in clinical monitoring or management of patients. It is not intended for use in employment-related testing.
Day(s) Performed
Monday through Saturday
Report Available
2 to 3 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
80307
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| CDAUX | Confirmed Drug Abuse Panel, CoC, U | 87428-9 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 36262 | Alcohol | 42242-8 |
| 36253 | Amphetamines | 43983-6 |
| 36258 | Barbiturates | 70155-7 |
| 36259 | Benzodiazepines | 14316-4 |
| 36254 | Cocaine | 43984-4 |
| 36255 | Opiates | 70151-6 |
| 36256 | Phencyclidine | 14310-7 |
| 36257 | Tetrahydrocannabinol | 14312-3 |
| 36261 | Chain of Custody | 77202-0 |