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some anitibiotics can show up as a false positive for cocaine, and the othere answere is partly correct , yes the gm/cs testing is anout 99 percent accurate.

but since most test are done int he dr. office and its only a uring test, these are not that accurate. if you should come up with what you feel is an inaccurate test.

demeand it be sent to the lab for further testing. the gm/cs .

but be positive your havent been fooling around with coke, becasue this test will show everthing,

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14y ago
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12y ago

If the test is via urine then yes, but be careful because that same test can determine if your urine sample is to diluted. Telling the tester that you were intentionally trying to flush your system. Some places will count a test result of this nature as a positive and so you have gained nothing.

Hope this answers your question.

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16y ago

Absolutely not!

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Q: Can diluting the urine with toilet water cause a false positive for cocaine?
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