If a person has used benzodiazepines or meth, the drug is identified in the urine for 48-72 hours. Methamphetamine can also be identified between 48-96 hours following use. (more…)

False positive is a test end result that is returned as soon as a drug tests positive for a different compound. It is a case of incorrect identity. For instance if you consume a couple poppy seed cakes prior to drug testing, you are able to obtain a positive result for opiates. (more…)