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HelpTest ID DSSX Drug Screen, Prescription/Over the Counter, Chain of Custody, Serum
Specimen Required
Supplies: Chain-of-Custody Kit (T282) containing the specimen seals and documentation are required
Container/Tube: Red top (serum gel/SST tubes are not acceptable); kit contains the specimen seals and documentation required
Preferred: One 10-mL red top
Acceptable: One 5-mL red top
Submission Container/Tube: Plastic vial
Specimen Volume: 2.75 mL
Collection Instructions: Centrifuge and aliquot serum into plastic vial within 2 hours of collection. Cap, seal, and submit with the associated documentation to satisfy the legal requirements for chain-of-custody testing.
Additional Information: See Emergency/Overdose.
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.
Useful For
Detection and identification of prescription or over the counter drugs frequently found in drug overdose or used with a suicidal intent
Qualitatively identifying drugs present in the specimen; quantification of identified drugs, when available, may be performed upon client request.
This test is not intended for therapeutic drug monitoring or compliance testing.
This test is not intended for use in employment-related testing.
This test is not useful for drugs of abuse or illicit drug testing, including benzodiazepines, opioids, barbiturates, cocaine, and amphetamine type stimulants.
Chain of custody is required whenever the results of testing could be used in a court of law. Its purpose is to protect the rights of the individual contributing the specimen by demonstrating that it was under the control of personnel involved with testing the specimen at all times; this control implies that the opportunity for specimen tampering would be limited.
Additional Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| COCH | Chain of Custody Processing | No | Yes |
Special Instructions
Method Name
Gas Chromatography-Mass Spectrometry (GC-MS)
Reporting Name
Drug Scrn, Prescription/OTC, CoC, SSpecimen Type
Serum RedSpecimen Minimum Volume
1.1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum Red | 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 Saturday
Report Available
3 to 4 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
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 |
|---|---|---|
| DSSX | Drug Scrn, Prescription/OTC, CoC, S | 20785-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 36185 | Drugs detected: | 20785-2 |
| 36186 | Chain of Custody | 77202-0 |