why test for nitrite in urine
An Indication Of Urinary Tract Infection. Veterinarians usually screen dog and cat urine sample using a paper strip impregnated at different points with chemicals that change color when particular compounds are present in your petâs urine. One of those compounds the test looks for is nitrite. Nitrite is produced by certain bacteria. When the test is done correctly and your petâs urine contains any nitrite, it is quite likely that it has a bacterial urinary tract infection (UTI) - even when no bacteria were seen. Urine that sits too long at room temperature can give a false-positive due to bacterial contamination and growth while it sat.