How long drugs stay detectable, cut-off values and test methods.
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The cut-off is the threshold above which a test is positive. See the typical cut-off values per substance and why the th...
A home strip gives an indication, a lab test a provable value. Read when a strip suffices and when you need a lab confir...
An innocent medicine or food can make a rapid drug test false positive through cross-reaction. See which ones and what t...
Urine, saliva or hair: each matrix covers a different time window. Compare the three test types and choose the test that...
How long drugs stay detectable depends on the substance, the test material and the person. See the detection window per...