This is a simple to use, one step, non-invasive drug test kit. It takes just 5 minutes to get an accurate result. Elevated levels of urinary/saliva metabolites are found within hours of exposure and remain detectable for between 3-10 days after smoking. The test panel yields a positive result when the concentration of THC-COOH in urine usually exceeds 50 ng/mL. The kit is fast and easy to use, and it uses the same technology as that found in professional screening laboratories. It is designed for use by both men and women, and is suitable for individuals aged 18 and above. Always read and follow the directions for use. A positive result indicates the presence of the drug or its metabolites, but does not indicate level of intoxication, administration route, or concentration in urine. A negative result may not necessarily indicate drug-free urine. Negative results can be obtained when the drug is present but below the cut-off level of the test. The test does not distinguish between different types of drugs.