how long does crack stay in your system for a urine drug test
Cocaine can be detected in urine for 1-4 days after use. How long it remains in the body depends on the amount take, the size and metabolism of the crack abuser, and other factors. High doses of crack cocaine can show up a week later â and in a few very extreme cases, crack might be detected up to 3 weeks later urine.he period crack can be detected in the blood is relatively brief. Itâs typically no longer detectable after about 8 hours after use. In some people, this detection window for crach can be as little as 2 hours, if theyâve taken a smaller dose or have a very fast metabolism.