how long will it stay in my system...I smoked once and I have to test! help

Ok so I never smoke anymore really, but I did last weekend and I have a drug test comming up any day now there random, So my question is how long do you think this will stay in my body if i only hit it a few times and I smoked for the first time in like 8 months??

! time smoker you should be fine. You might try drinking about 24 ounces of gatorade the morning of the UA,pee 3 or 4 times and use your midstream piss just for added insurance.