Test ID: DAUCO
Drug of Abuse, Cocaine Screen with GC-MS Confirmation, Urine
Method Description 
Describes how the test is performed and provides a method-specific reference
The specimen is extracted using a solid phase extraction (SPE) procedure and then analyzed by gas chromatography/mass spectrometry (GC-MS) to identify and quantitate any cocaine and or benzoylecgonine present.(Armbruster DA, Schwarzhoff RH, Hubster EC, Liserio MK: Enzyme immunoassay, kinetic microparticle immunoassay, radioimmunoassay, and fluorescence polarization immunoassay compared for drugs-of-abuse screening. Clin Chem 1993;39:2137-2146; Ferrara SD, Tedeschi L, Frison G, et al: Drugs-of-abuse testing in urine: statistical approach and experimental comparison of immunochemical and chromatographic techniques. J Anal Toxicol 1994;18:278-291)
Day(s) and Time(s) Test Performed Outlines the days and times the test is performed. This field reflects the day and time the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time required before the test is performed. Some tests are listed as continuously performed, which means assays are performed several times during the day.
Monday through Friday, Sunday; Varies
Analytic Time Defines the amount of time it takes the laboratory to setup and perform the test. This is defined in number of days. The shortest interval of time expressed is "same day/1 day," which means the results may be available the same day that the sample is received in the testing laboratory. One day means results are available 1 day after the sample is received in the laboratory.
3 days
Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result
6 days
Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded
2 weeks
Performing Laboratory Location The location of the laboratory that performs the test
New England
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