Test Code PDSUX Drug Screen, Prescription/Over the Counter, Chain of Custody, Random, Urine
Additional Tests
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
COCH | Chain of Custody Processing | No | Yes |
Specimen Type
UrineAdditional Testing Requirements
If urine creatinine is required or adulteration of the sample is suspected, also order, ADLTX / Adulterants Survey, Chain of Custody, Random, Urine.
Specimen Required
Supplies: Chain-of-Custody Kit (T282)
Container/Tube: Chain-of-Custody Kit containing the specimen containers, seals, and documentation required.
Specimen Volume: 30 mL
Collection Instructions: Collect a random specimen without preservative in the container provided, seal, and submit with the associated documentation to satisfy the legal requirements for chain-of-custody testing.
Additional Information: Submitting less than 30 mL will compromise the ability to perform all necessary testing.
Specimen Minimum Volume
1.1 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 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. 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 opiates. For these drugs, see Mayo Clinic Laboratories' drug abuse surveys, drug screens, or individual tests.
Chain of custody is a record of the disposition of a specimen to document the personnel who collected, handled, and performed the analysis. When a specimen is submitted in this manner, analysis will be performed in such a way that it will withstand regular court scrutiny.
For detection limits for drugs detected in this test see Prescription and Over-the-Counter Drug Screening List and Limits of Detection.
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
Report Available
3 to 4 daysPerforming Laboratory

CPT Code Information
80307
Method Name
Gas Chromatography Mass Spectrometry (GC-MS)
Forms
1. Chain of Custody Request is included in the Chain-of-Custody Kit (T282).
2. If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.