CLIA Waived U-Screen Drug Test Cup
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The U-Screen CLIA Waived Cup is only a preliminary screen and all positive screens must be confirmed using a more definitive form of testing such as LC/MS (Liquid Chromatography/Mass Spectrometry). Confirmation programs are available upon request. For more information, call your sales representative at 1-800-992-1345.
Drug Names and Abbreviations
Adulterants and Abbreviations
The specimen validity test is based on the color response of chemical indicators at presence of adulterants. Creatinine (Cr), bleach/oxidant (Bl), and specific gravity (S.G.) are tested to determine the integrity of urine samples.
Performing the Test
Step 1: Have the donor provide a specimen in cup.
Step 2: Verify that temperature is within range on the temperature strip (90° - 100°F).
Step 3: To activate test, place the screw-top lid on the cup and turn until tight.
Step 4: Remove label. For cups with specimen validity tests, compare specimen validity test pads with the color chart. If pad colors are outside normal range, open a second test cup, collect a new specimen, and retest.
Step 5: Read the drug screen test results when control lines are clearly visible.
Reading the Results Window
Control lines are lines that appear in the test windows next to the letter "C" and indicate that the test has run and functioned properly.
Test lines are lines that appear in the test windows next to the drug abbreviations indicating the presence or absence of drug metabolite.
NOTE: If a test line appears, that is an indication of a "negative" specimen. Only the absence of a line (missing line) indicates a "positive" specimen.
Interpreting the Results
Click to View: U-Screen Drug Test Information