The First Check marijuana cup test provides preliminary information in just 5 minutes about the possible use of marijuana.
Accuracy: Laboratory studies for accuracy confirm that the First Check marijuana drug test kit had 100% agreement when testing true negative samples. True negative samples are samples that previously tested negative by gas chromatography/mass spectrometry (GC/MS), the gold standard in laboratory testing.
In those same studies, clinical positive samples tested with First Check and GC/MS showed 100% agreement when the test was performed as directed. Clinical positive samples are those that previously tested at levels 50% or greater above the established cut-off levels. Samples at or near the cut-off level provided the greatest margin for error. First Check is the first step in the process to detect drugs of abuse in urine. We recommend all positive screening results be sent to the laboratory for confirmation. See package insert for cut-off levels.
This kit contains: Confidential confirmatory test included in purchase price.
Easy to test, easy to read, results in minutes:
For external use only.