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HelpTest Code PNRCH Drug Immunoassay Panel, Urine
Reporting Name
Drug Immunoassay Panel, UPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Useful For
Detecting drug use involving barbiturates, cocaine, and carboxy-tetrahydrocannabinol
This test is not intended for use in employment-related testing.
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
Ordering 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 Type
UrineSpecimen Minimum Volume
20 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 14 days | |
| Frozen | 14 days | ||
| Ambient | 72 hours |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitabilityReference 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.
Interpretation
A positive result derived by this testing indicates that the patient has used one of the drugs detected by these techniques in the recent past.
For information about drug testing, including estimated detection times and Result Interpretations, see Controlled Substance Monitoring on MayoClinicLabs.com.
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 to 2 daysTest 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 |
|---|---|---|
| PNRCH | Drug Immunoassay Panel, U | 87428-9 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 2574 | Barbiturates | 70155-7 |
| 21652 | Cocaine | 19359-9 |
| 2664 | Tetrahydrocannabinol | 19415-9 |
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.