for a subsequent test procedure typically associated with laboratorybased tests and/or confirmation drug tests. Confirmatory, or Confirmation Drug test
Confirmatory testing should be considered following a presumptive positive screening test.2 The decision to perform a confirmatory test should take into
If confirmatory drug test substantiates the red flag (e.g. positive for Negative result does not exclude use and confirmatory testing. (GC/MS)
(b) Confirmatory drug testing. (1) A specimen that is identified as positive on an initial drug test must be subject to confirmatory testing for the class(es)
If confirmatory drug test substantiates the red flag (e.g. positive for Negative result does not exclude use and confirmatory testing. (GC/MS)
Drug screen, qualitative; by Instrument assisted direct optical. Confirmatory testing. Confirmatory testing will be sent to Mayo Medical Laboratories for
If confirmatory drug test substantiates the red flag (e.g. positive for Negative result does not exclude use and confirmatory testing. (GC/MS)
Drug screen, qualitative; by Instrument assisted direct optical. Confirmatory testing. Confirmatory testing will be sent to Mayo Medical Laboratories for
situations. Properly performed urine drug testing involves two steps: an initial screening test fol - lowed by confirmatory testing for substances with positive screening results. Confirmatory testing
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