I will be tested in the next few days..i need some advice so don't bash me alright..of course my last test strip showed nothing (positive nor negative) ..defective strip I suppose..so I am stuck with a few options here..go purchase a test kit at the local store..if I pass great but do the labs test for a lower amount of THC? Do these test strips test at 50 ng/ml or more? I have read that lab test that can show as little as 15 ng/ml is that right?..should I just play it safe and go with quick fix? I think so...were gonna know soon..like later on today..thanx