Test 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 |
Clinical Information
This assay was designed to screen for and confirm by gas chromatography-mass spectrometry (GC-MS), gas chromatography-flame ionization detection (GC-FID), or liquid chromatography-tandem mass spectrometry (LC-MS/MS) for the following drugs:
-Amphetamines
-Barbiturates
-Benzodiazepines
-Cocaine
-Ethanol
-Opiates
-Phencyclidine
-Tetrahydrocannabinol
Chain of custody is a record of the disposition of a specimen to document who collected it, who handled it, and who performed the analysis. When a specimen is submitted in this manner, analysis will be performed in such a way that it will withstand regular court scrutiny.
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.
Cautions
Not intended for use in employment-related testing.
The test does not screen for drug classes other than those listed above. More comprehensive screening is available using the serum or urine drug screens (DSSX / Drug Screen, Prescription/OTC, Chain of Custody, Serum or PDSUX / Drug Screen, Prescription/OTC, Chain of Custody, Urine).
Day(s) Performed
Monday through Saturday
Report Available
2 to 3 daysPerforming Laboratory

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