Anytime you test yourself, always use the first urination when you wake up. The first urination contains the highest concentration of THC metabolites. Fluid consumption (normal or above normal) during the course of the day skews the test results when the test is taken during the afternoon or evening.

If you test negative using the first urination of the morning, youre good to go.
Burnt Toast Reviewed by Burnt Toast on . Drug Test in Less than 24 hours. Help me! A week ago my buddies and I took a hit from a gravity bong. Then days later I got a call from a job I applied to long ago, asking me to come in for an interview today. So I show up and the manager tells me I got the job, but it's not official until I pass a drug test tomorrow morning. Freaking the hell out, I go to Walgreens and buy a drug test and end up testing negative. I'm still worried because it's only been a week since I took that GB hit and I haven't done much to flush the THC Rating: 5