The length of time cocaine stays in the urine depends on several factors like:
- the potency of the drug,
- the amount taken in,
- the frequency of drug use,
- the general health of the user,
- the age,
- the gender,
- the user’s drug tolerance and
- the user’s metabolic rate.
If a single nasal cocaine dose is snorted, it can be detected inside 4 to 10 hours and around 24 hours subsequent to a single oral dose. Injected cocaine can be detected in the urine even 20 hours or more from use. The cocaine metabolites (benzoylecgonine, ecgonine methyl ester and coca ethylene) are detected until 60 hours from last single use or 22 days after continual use.
This preferred cocaine testing method since this is cheap and could detect recent use of cocaine – within seven days. The client needs only to provide adequate amount of urine sample for testing. The amount of bezoylecgonine, a cocaine metabolite that would produce a positive result would be 300 ng/ml. A follow-up drug test will be required to verify the initial result. A urine sample with 150 ng/ml result confirms positive cocaine use.
- Sample of urine
- We perform the test daily