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Test Code DRUGUNCF Drug of Abuse Screen, No Confirmation, Urine

Additional Codes

  • Expanse Test Name:Drug Scrn without Confirm, U
  • Medinet Ref Code:DRUGSC
  • OV Code:URCHEM*DRUGUNCF

Performing Laboratory

St. Lukes Hospital Laboratory

Methodology

Metal Soluble Immunoassay

Screens for amphetamines, barbiturates, benzodiazepines, buprenorphine, cocaine, methadone, opiates, oxycodone, phencyclidine (PCP), tetrahydrocannabinol (THC), and tricyclic antidepressants (TCA) including amitriptyline, chlorpromazine, chlorprothixene, clomipramine, cyclobenzaprine, desipramine, doxepin, imipramine, maprotiline, norclomipramine, nordoxepin, nortriptyline, perphenazine, phenothiazine, promazine, protriptyline, thiothixene, and trimipramine.

Note:  Screening results are unconfirmed and should not be accepted as absolute evidence that the drugs reported are present without confirmation. The urine specimen will be retained in the laboratory for 1 week. If confirmatory testing or further specifics regarding sensitivity is desired, call St. Luke’s  Laboratory at 218-249-5200.

 

This drug screen is not intended to monitor patient compliance/adherence to prescription pain medication.

Specimen Requirements

60 mL from a random urine collection. No preservative.

Reference Values

The following drugs and/or metabolites are screened for and have a cutoff value of:
Amphetamines:  1,000 ng/mL

Barbiturates:  200 ng/mL

Benzodiazepines:  200 ng/mL

Buprenorphine: 10 ng/mL

Cocaine:  300 ng/mL

Opiates:  300 ng/mL

Phencyclidine:  25 ng/mL

Methadone:  300 ng/mL

Opiates: 300 ng/mL

Oxycodone: 100 ng/mL

THC:  50 ng/mL

TCA:  300 ng/mL

TCA drugs included

Amitriptyline:  positive at 500 ng/mL

Chlorpromazine:  negative at 100 µg/mL

Chlorprothixene:  negative at 100 µg/mL

Clomipramine:  negative at 100 µg/mL

Cyclobenzaprine:  positive at 5 µg/mL

Desipramine:  300 ng/mL

Doxepin:  positive at 5 µg/mL

Imipramine:  positive at 125 ng/mL

Maprotiline:  positive at 500 ng/mL

Norclomipramine:  negative at 100 µg/mL

Nordoxepin:  positive at 750 ng/mL

Nortriptyline:  positive at 500 ng/mL

Perphenazine:  negative at 100 µg/mL

Phenothiazine:  negative at 100 µg/mL

Promazine:  positive at 250 ng/mL

Protriptyline:  negative at 100 µg/mL

Thiothixene:  negative at 100 µg/mL

Trimipramine:  positive at 5 µg/mL

Interfering Substances:

Some natural herbal and plant products contain substances which may cross-react and produce a false-positive drug screen.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

80307