Blood Drug Testing

How far back does a urine test detect marijuana?

I smoked for my first time 21 days ago and i had to take a urine test for a pre emplymrnt requirement, i did smoke a lot, and i was wondering if it would come up on the test?

Public Comments

1. LOL! wow... uh.. i dont thnk it'll come up. ;D
2. Maybe you should get caught. Anyone who is willing to do drugs even though they are CLEARLY illegal deserves some consequenses.
3. Here's the real deal: Cannabis and Drug Tests by Erowid Tested for in Standard Drug Tests? YES Detection Period in Urine Single Use : 48-72 hrs Habitual Use : up to 12 weeks Urine Testing THC is one of the "NIDA 5". The five drugs tested for in the standard NIDA approved drug test. It is standardly detectable in Urine for 48-72 hours after single use. Habitual or chronic use can be detected in urine for up to 12 weeks depending on quantity, duration, and frequency of use. Tetrahydrocannabinol is rapidly absorbed by inhalation and the gastrointestinal tract . It is almost completely metabolized. The predominant metabolite is 9-carboxy-11-nor-delta-9-THC, which found in the plasma, feces and urine along with other compounds. Very low concentrations of THC may be detected in urine during the initial several hours, but tetrahydrocannabinol persists in urine at a detectable concentration for many days after smoking.
4. Depending on how much and how often you smoke, THC is detectable for 30 to 60 days.