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Drug Abuse Screen 7, with Confirmation, Serum [19767X]
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
DS7SER
Alias/See Also
19767
CPT Codes
80307
Includes
Amphetamines, Barbiturates, Benzodiazepines, Cocaine Metabolites, Marijuana Metabolites, Opiates, PCP (Phencyclidine)
Preferred Specimen
10 mL plasma collected in sodium fluoride or sodium fluoride/potassium oxalate (gray-top) tube
Minimum Volume
5 mL
Other Acceptable Specimens
10 mL whole blood collected in sodium fluoride or sodium fluoride/potassium oxalate (gray-top) tube • Serum collected in a red-top tube (no gel)
Transport Temperature
Plasma and whole blood: Refrigerated (cold packs)
Serum: Frozen
Serum: Frozen
Specimen Stability
Plasma and whole blood
Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 30 days
Serum
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days
Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 30 days
Serum
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum separator tube
Methodology
Chromatography • Gas Chromatography/Mass Spectrometry (GC/MS) • Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat; Report available: 3 days
Reference Range
See Laboratory Report
Clinical Significance
The serum or plasma concentration of a drug is measured as a guide to individualization of therapy. Additionally, the problem of noncompliance with prescribed medications during continuing therapy, particularly in the pain management field, is an elusive cause of therapeutic failure.
Performing Laboratory
| Quest Diagnostics Nichols Institute |
| 14225 Newbrook Drive |
| Chantilly, VA 20153 |
Last Updated: November 29, 2021
