Nitrite in Urine (Quantitative)

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like frequent urination, pain or burning during urination, cloudy or strong-smelling urine, or if you’ve been diagnosed with a urinary tract infection (UTI). It can also be used as part of routine screening in certain clinical settings.

How the Test Works

Nitrite in urine is detected through a chemical reaction in a urine sample. Bacteria like *Escherichia coli* (E. coli) can convert nitrates in your urine into nitrites. If nitrites are present, the test will show a positive result, suggesting bacterial infection.

What to Expect Before or After the Test

No special preparation is needed for this test. You’ll provide a urine sample, typically collected in the morning. If you’re using a home test kit, follow the instructions carefully. Results are usually available within hours or the next day.

Possible Results and Their Meaning

A positive result for nitrite indicates a higher likelihood of a bacterial infection in your urinary tract. However, a negative result does not definitively rule out infection, as not all bacteria produce nitrites. Your healthcare provider will interpret results in the context of your symptoms and other tests.