Test ID PDSU Drug Screen, Prescription/OTC, Urine
Useful For
The qualitative detection and identification of prescription or over-the-counter drugs frequently found in drug overdose or used with a suicidal intent
This test is designed to provide, when possible, the identification of all drugs present.
Special Instructions
Method Name
Gas Chromatography-Mass Spectrometry (GC-MS)
Qualitative results will be reported.
Reporting Name
Drug Screen, Prescription/OTC, USpecimen Type
UrineContainer/Tube: Plastic, 60-mL urine bottle
Specimen Volume: 30 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Additional Information:
1. See Prescription and Over-the-Counter (OTC) Drug Screens in Special Instructions.
2. For situations where chain of custody is required, a Chain-of-Custody Kit (T282) is available. For chain-of-custody testing, order COCH / Chain-of-Custody Processing.
3. Not intended for use in employment-related testing.
4. Submitting less than 30 mL will compromise our ability to perform all necessary testing.
Forms: Chain-of-Custody Request Form is included in the Chain-of-Custody Kit (T282). A copy of this form is also available at http://www.mayomedicallaboratories.com/it-mmfiles/chain-of-custody-request-form.pdf.
Specimen Minimum Volume
2.1 mL
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Urine | Refrigerated (preferred) | 14 days |
Frozen | 14 days | |
Ambient | 3 hours |
Clinical Information
This test looks for a broad spectrum of prescription and over-the-counter (OTC) drugs. It is designed to detect drugs that have toxic effects, as well as known antidotes or active therapies that a clinician can initiate to treat the toxic effect. The test is intended to help physicians manage an apparent overdose or intoxicated patient, or to determine if a specific set of symptoms might be due to the presence of drugs. The test is not designed to screen for intermittent use or illicit drugs.
Drugs of toxic significance that are not detected by this test are: digoxin, lithium, and many drugs of abuse/illicit drugs, some benzodiazepines, and some opioids.
See Prescription and Over-the-Counter (OTC) Drug Screens in Special Instructions.
Reference Values
Identification
Cautions
Not intended for use in employment-related testing.
Not intended for therapeutic compliance testing.
Day(s) Performed
Monday through Sunday; Varies
Report Available
3 daysPerforming Laboratory

Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
80304
G0479 (if appropriate)