how long does crack stay in your system
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 levels of cocaine in the blood depend on how much crack a person has smoked at one time, how tolerant they are to the drug, and how often they smoke crack. Typical peak levels in abusers are around 0.31 mg/L within five minutes of taking the drug.