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Why don’t First Check Home Drug Tests use “zero” as the cut-off level for detecting drugsin urine?

April 26, 2017Cut-Off detecting don’t drug Home level tests

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Why don’t First Check Home Drug Tests use “zero” as the cut-off level for detecting drugsin urine?

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First Check uses standard cut-off levels to help to reduce the likelihood of false-positive screening results which can occur when using a zero cut-off level.