Urine dip stick showed rbc @ doctors office, and I forgot to go back in 2 weeks to recheck the rbc. I did an azo test yesterday, it was positive for WBC but negative for nitrates, could the azo test mistake rbc for leukocytes?? I have no signs or symptoms of an uti. By the way, they found the rbc in urine dipstick test 6 months ago, and now I am freaking out, HELP!!