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Lockport, IL
A 30-year-old male asked:

I did one line of cocaine on sunday 12/18 morning at about 1:30 am. i was drinking it was & have never done it before. i have a urine drug test tuesday at 7 am. it would be about 53 hrs since i did the line. is it likely i will pass? i am 5'9/170lbs

2 doctor answers2 doctors weighed in
Dr. Yash Khanna
Family Medicine 57 years experience
Unlikely to pass: In infrequent cocaine users like you described yourself ,it may show in the urine for3to5to days. But those who abuse it regularly it may remain positive for 2 to3 weeks.Cocaine breaks down rather quickly but the urine test is done for the metabolite of cocaine Benzoylecgonone and that can show in urine for 3 to 5 days.One can dilute the urine by drinking lots of water but there is no guarantee.
Dr. Gurmukh Singh
Pathology 49 years experience
Likely: Cocaine has a short half life and you are likely to pass the test. Please note that alcohol and cocaine is a dangerous combination and can kill due to heart arrhythmia. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex.
Dr. Yash Khanna
Dr. Yash Khanna commented
Family Medicine 57 years experience
While it is true that cocaine has a short life and it disintegrate pretty fast.But in the urine we do not test for cocaine but it's metabolite Bezyoylecgonine,Urine screen currently required by the employers use the minimum cut off level set by National Institute of Drug Abuse(NIDA)to establish positive drug test.A urine level of 300nanogram per mili litre is considered+and can remain +for3-5days
Dec 19, 2016

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Last updated Dec 30, 2019

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