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Test Code CDAUN (PDSU) Drug Screen, Prescription/Over the Counter, Random, Urine

Reporting Name

Drug Screen, Prescription/OTC, U

Useful For

Qualitative detection and identification of prescription or over-the-counter drugs frequently found in drug overdose or used with a suicidal intent

 

Providing, when possible, the identification of all drugs in the specimen

 

This test is not intended for use in employment-related testing.

 

This test is not intended for therapeutic compliance testing. The assay's limits of detection have been established for drugs at overdose levels, which are generally much higher than therapeutic concentrations.

 

This test is not useful for drugs of abuse or illicit drug testing, including benzodiazepines, opioids, barbiturates, cocaine, and amphetamine type stimulants.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Urine


Ordering Guidance


This test is not performed using chain of custody. For chain-of-custody testing, order PDSUX / Drug Screen, Prescription/Over the Counter, Chain of Custody, Random, Urine.



Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Plastic urine container

Submission Container/Tube: Plastic vial

Specimen Volume: 5 mL

Collection Instructions:

1. Collect a random urine specimen.

2. No preservative. Specimens containing preservative may be canceled.


Specimen Minimum Volume

1.1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 14 days
  Frozen  14 days
  Ambient  3 hours

Reference Values

Drugs detected are presumptive. Additional testing may be required to confirm the presence of any drugs detected.

Day(s) Performed

Monday through Friday

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

80307

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PDSU Drug Screen, Prescription/OTC, U 12286-1

 

Result ID Test Result Name Result LOINC Value
31260 Drugs detected: 12286-1
45529 Suspect Drug No LOINC Needed

Clinical Information

This test looks for a broad spectrum of prescription and over-the-counter medications. It is designed to detect drugs that have toxic effects, as well as known antidotes or active therapies that a clinician can initiate to counteract 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. This test is not appropriate for drugs of abuse or illicit drug testing, including benzodiazepines, opioids, barbiturates, cocaine, and amphetamine-type stimulants.

 

Drugs of toxic significance that are not detected by this test are digoxin, lithium, salicylate, and many drugs of abuse or illicit drugs, some benzodiazepines, and some opioids. For these drugs, see Mayo Clinic Laboratories' drug abuse surveys, drug screens, or individual tests.

 

For detection limits for drugs detected in this test see Prescription and Over-the-Counter Drug Screening List and Limits of Detection.

Interpretation

The drugs that are detected by this test are listed in Prescription and Over-the-Counter Drug Screening List and Limits of Detection.

 

A detailed discussion of each drug detected is beyond the scope of this text. Each report will indicate the drugs identified. If a clinical interpretation is required, contact Mayo Clinic Laboratories at 800-533-1710 and ask to speak to a toxicology consultant.

Cautions

No significant cautionary statements

Clinical Reference

1. Langman LJ, Bechtel LK, Holstege CP. Clinical toxicology. In: Rifai N, Chiu RWK, Young I, Burnham CAD, Wittwer CT, eds. Tietz Textbook of Laboratory Medicine. 7th ed. Elsevier; 2023:chap 43

2. Baselt RC. Disposition of Toxic Drugs and Chemical in Man. 12th ed. Biomedical Publications; 2020

Method Description

Screening is by gas chromatography mass spectroscopy.(Unpublished Mayo method)

Report Available

2 to 4 days

Specimen Retention Time

2 weeks

Reject Due To

  All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

NY State Approved

Yes

Method Name

Gas Chromatography Mass Spectrometry (GC-MS)

Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.