Trait controlled by the both environment and genetic factor. Usually, multifactorial traits outside of illness result in what we see as continuous characteristics in organisms, especially human organisms such as: height, skin color, and body mass.
I recently took a drug test for a job. I tested positive for opiates in my urine. I do not and have never taken drugs of any sort other than alcohol. I dont take any prescription drugs, how is it possible that this happened. I hade consumed some beer about12 hours before the test.
Hydrocodone and other opiates will metabolize quite fast. It can be detected in the urine or blood for a day; even two days, depending on your dosage or if you are a habitual user or not. If the drug detection lab is using some ultra-sensitive tests, I really couldn't be sure how long they could find it. Those tests are getting better and better all of the time.