yes and no. it depends on the type of test. azo is a bright orange dye that discolors the urine. on office dipstick-type urine tests there are about a dozen different tests on those dipsticks that can be done but these must be read on a color scale. fluorescent-orange urine can interfere with the readings. a microscopic test or urine culture would not be effected by discoloration.
will azo standard affect my uti test