Test ID DAU9 Drugs of Abuse Screen, DAU9, Urine
Useful For
Detecting drug abuse involving amphetamines, barbiturates, benzodiazepines, cocaine, opiates, phencyclidine, tetrahydrocannabinol, and methadone
This test is intended to be used in a setting where the test results can be used to make a definitive diagnosis
Reflex Tests
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
DAUAM | Drug of Abuse, Amphetamine Conf, U | Yes | No |
DAUBZ | Drug of Abuse, Benzo Conf, U | Yes | No |
MSBR | Drug of Abuse, Barbiturate Conf, U | Yes | No |
MSCO | Drug of Abuse, Cocaine Conf, U | Yes | No |
MSMT | Drug of Abuse, Methadone Conf, U | Yes | No |
MSPCP | Drug of Abuse, Phencyclidine Conf U | Yes | No |
MSTHC | Drug of Abuse, THC Conf, U | Yes | No |
MSOP | Drug of Abuse, Opiate Conf, U | Yes | No |
Testing Algorithm
Testing begins with screening tests for drugs of abuse. Positives are confirmed and quantitated by definitive methods. Gas chromatography-mass spectrometry for amphetamines, barbiturates, benzodiazepines, cocaine and metabolites, phencyclidine, and tetrahydrocannabinol metabolite at additional charge. Methadone and opiates that screen positive will be quantified with liquid chromatography-tandem mass spectrometry at an additional charge.
See Adulterant Survey Algorithm in Special Instructions.
Special Instructions
Method Name
Enzyme-Multiplied Immunoassay Technique (EMIT)
Reporting Name
Drug of Abuse, Clin, DAU9, USpecimen Type
UrineContainer/Tube: Plastic, 60-mL urine container (Supply T313)
Specimen Volume: 30 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Specimen Minimum Volume
10 mL
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Urine | Refrigerated (preferred) | 14 days |
Ambient | 14 days | |
Frozen | 14 days |
Clinical Information
This test uses immunologic testing for drugs by class and screens for the presence of amphetamines, barbiturates, benzodiazepines, cocaine metabolite, methadone, opiates, phencyclidine, and tetrahydrocannabinol in urine. Positive immunologic results are confirmed by gas chromatography-mass spectrometry or liquid chromatography-tandem mass spectrometry.
Reference Values
Negative
The specific drug identified will be reported.
Enzyme-multiplied immunoassay technique cutoff concentrations:
Amphetamines: 500 ng/mL
Barbiturates: 200 ng/mL
Benzodiazepines: 200 ng/mL
Cocaine (benzoylecgonine-cocaine metabolite): 150 ng/mL
Methadone: 300 ng/mL
Opiates: 300 ng/mL
Phencyclidine: 25 ng/mL
Tetrahydrocannabinol carboxylic acid: 50 ng/mL
Results of this test are confirmed and should be considered definitive.
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 (CDAS / Drug Screen, Prescription/OTC, Serum or CDAUN / Drug Screen, Prescription/OTC, Urine).
Day(s) Performed
Monday through Friday, Sunday
Report Available
2 daysPerforming Laboratory

Test Classification
This test has been cleared or approved by the U.S. 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
80301
G0479 (if appropriate)