If Leukocytes test is negative and Nitrite test is negative: no sign of UTI (if symptoms continue, test again or consult healthcare provider). If Leukocytes test is negative or trace but Nitrite ...

3. AZO Urinary Tract Infection (UTI) Test Strips The chemicals used in these test strips are the same ones your doctor uses to test whether or not you might have a UTI, so if you're unsure ...