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HelpTest Code PNRCH Drug Immunoassay Panel, Urine
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| BARBU | Barbiturates Confirmation, U | Yes | No |
| COKEU | Cocaine and metabolite Conf, U | Yes | No |
| THCU | Carboxy-THC Confirmation, U | Yes | No |
Testing Algorithm
Testing begins with screening tests for drugs of abuse including barbiturates, cocaine, and tetrahydrocannabinol.
Positive results are confirmed and quantitated by definitive methods, gas chromatography mass spectrometry for barbiturates, cocaine, and metabolites and liquid chromatography tandem mass spectrometry for tetrahydrocannabinol metabolites at an additional charge.
Method Name
Only orderable as part of profile. For more information see:
-CSMPU / Controlled Substance Monitoring Panel, Random, Urine.
-ADMPU / Addiction Medicine Profile with Reflex, 22 Drug Classes, High Resolution Mass Spectrometry and Immunoassay Screen, Random, Urine
-CSMEU / Controlled Substance Monitoring Enhanced Profile with Reflex, 21 Drug Classes, High Resolution Mass Spectrometry and Immunoassay Screen, Random, Urine
Immunoassay
Specimen Type
UrineOrdering Guidance
The test does not screen for drug classes other than those listed in Testing Algorithm.
Specimen Required
Only orderable as part of profile. For more information see:
-CSMPU / Controlled Substance Monitoring Panel, Random, Urine
-ADMPU / Addiction Medicine Profile with Reflex, 22 Drug Classes, High Resolution Mass Spectrometry and Immunoassay Screen, Random, Urine
-CSMEU / Controlled Substance Monitoring Enhanced Profile with Reflex, 21 Drug Classes, High Resolution Mass Spectrometry and Immunoassay Screen, Random, Urine
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 14 days |
| Frozen | 14 days | |
| Ambient | 72 hours |
Reference Values
Only orderable as part of profile. For more information see:
-CSMPU / Controlled Substance Monitoring Panel, Random, Urine
-ADMPU / Addiction Medicine Profile with Reflex, 22 Drug Classes, High Resolution Mass Spectrometry and Immunoassay Screen, Random, Urine
-CSMEU / Controlled Substance Monitoring Enhanced Profile with Reflex, 21 Drug Classes, High Resolution Mass Spectrometry and Immunoassay Screen, Random, Urine
Negative
Screening cutoff concentrations:
Barbiturates: 200 ng/mL
Cocaine (benzoylecgonine-cocaine metabolite): 150 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.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
80307
Specimen Minimum Volume
10 mL
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitabilityClinical Information
This test uses the simple screening technique that involves immunoassay testing for drugs by class. All positive immunoassay screening results are confirmed by either gas chromatography mass spectrometry (GC-MS) or liquid chromatography tandem mass spectrometry (LC-MS/MS) and quantitated before a positive result is reported.
This assay was designed to test for and confirm by GC-MS the following:
-Barbiturates
-Cocaine
This assay was designed to test for and confirm by LC-MS/MS the following:
-Carboxy-tetrahydrocannabinol
This test is intended to be used in a setting where the test results can be used to make a definitive diagnosis.
Day(s) Performed
Monday through Saturday