I just done a urine test and cocaine showed up, I am not a drug user or have taking cocaine, so I went to the Dr. and I have a kidney infection that I just noticed would this/or could this be the problem? I also was drinking tonic water for cramps in legs as I am training for a 13 mile race.
Hi, Thanks for writing in. Kidney function is unlikely to cause positive traces of cocaine in urine tests. It is possible that Chat Doctor.  Please get treated for your kidney infection on time and the infection is to be controlled completely with a short course of antibiotics. Taking any pain relief for kidney infection might interact with the test for cocaine and give positive result. Please make a declaration to the testing lab on the substances you might have taken knowingly or as treatment recommended for your kidney infection. Please do not worry.