Cocaine is metabolized mainly to benzoylecgonine and ecgonine methylester. Cocaethylene is an indication of concurrent cocaine and alcohol consumption. Serum half-life of cocaine is 1-5 hours. Benzoylecgonine appears in circulation 15-30 minutes after cocaine administration. Elimination half-life of benzoylecgonine is 5-6 hours. Benzoylecgonine will be detectable in urine after 2-3 hours and urine remains positive for 2-3 days (longer for chronic abusers) after cocaine use.
Do not use serum separator tubes.
Reported (Analytical Time)
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Please direct any questions regarding coding to the payer being billed.
This test is for clinical purposes only. Reference ranges indicate reporting limits.