This PreScreen Plus Drug Test Dip Card (EtG) is everything you will need for a prescreen drug test. The unique “Dip and Read” design speeds up the process and delivers test results in minutes. Designed for ETG (Ethyl Glucuronide), this “Forensic Use Only” dip card has a cutoff concentration of 500 ng/mL. The drug test dip card requires the urine sample to be at room temperature (59-68 F / 15-30 C), before performing a test. The dip card only has to be immersed for 20-30 seconds, which will deliver results in 5 minutes. The test results should not be interpreted, 10 minutes after testing.