Cocaine can be found in the system anywhere from two to 14 days. Detection in drug tests include:
Urine: detection up to 14 days after the last use – most common testing method
Saliva: can be detected up to 12-48 hours later
Blood: can be detected up to 12-48 hours later
Sweat: can be detected for two to three weeks
Hair follicles: carries traces of the drug the longest – for several years