Sign in →

Test Code DSS Drug Screen, Prescription/OTC, Serum

Additional Codes


Powerchart: Drug Screen Plasma

Epic: LAB2811 Drug Screen Prescription-OTC

Reporting Name

Drug Screen, Prescription/OTC, S

Useful For

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 qualitatively identify drugs present in the specimen; quantification of identified drugs, when available, may be performed upon client request

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum Red

Specimen Required

Container/Tube: Red top

Specimen Volume: 2.75 mL

Additional Information:

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

2. This test is not appropriate for assessment of therapeutic compliance.

3. Not intended for use in employment-related testing.

4. For chain-of-custody testing, order DSSX / Drug Screen, Prescription/OTC, Chain of Custody, Serum.

Specimen 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) and Time(s) Performed

Monday through Sunday; Varies

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


LOINC Code Information

Test ID Test Order Name Order LOINC Value
DSS Drug Screen, Prescription/OTC, S In Process


Result ID Test Result Name Result LOINC Value
31072 Drugs detected: 20785-2
31168 Chain of Custody No LOINC Needed

Reject Due To


Mild OK; Gross OK


Mild OK; Gross OK


Mild OK; Gross OK


Plasma or serum gel tube

Method Name

Gas Chromatography-Mass Spectrometry (GC-MS)

Secondary ID