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As with all drugs, there is a variable amount of time until which someone will become negative, The most common duration of detection of cocaine by a urine drug test is 2-4 days, but it can take u to 5 days for the test to be negative.
The fact that you used cocaine several other times in the last month does not increase the period of detection after this last use, so you are no more likely to be positive because of other uses in the last month.
So, if you last used cocaine Saturday night, you are still in the period in which the drug can be detected by a urine drug test, although towards the end of the detection period. Therefore, you may well pass the test, but you do not say whether the test has already been collected and if you can delay the test until Friday, you would be out of the period of detection.
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