If the drug screening temperature is out of range, the urine may be adulterated by substances (i.e., water), indicating the drug test has been falsified.-, If you are looking for the best at-home drug tests with a urine collection cup and self-adhesive temperature strips, I suggest you take a look at. Temperature of the urine specimen is considered to be very vital in drug testing. Web i'm assuming your either on drug court or a diversion/stop program, my (fellow drug addict) advice would be to limit your consumption to the night after your.Reagent Drug Test Chart showing how various narcotics react with the from www.alamy.comWeb five They will also ask you to return the cup as soon as possible after you have voided to keep your urine warm. Only 7 days. Reading the instruction manual and following the appropriate steps can ensure the accuracy of the test result. The strip contains a liquid crystal that is sensitive to temperature changes. Remove the contents from the box. $2.89ea. marijuana. A dip drug test or a dip card drug test is an instant urine drug test used for detecting the presence of illicit substances. var links=w.document.getElementsByTagName("link");for(var i=0;i