C-reactive protein (CRP) in urine by probe-based assay

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms suggestive of urinary tract inflammation, infection, or other conditions that could affect kidney or bladder health. It may also be used as part of an evaluation for systemic inflammation or to monitor treatment responses.

What to Expect Before the Test

No special preparation is typically needed. You may be asked to collect a urine sample at home or in a lab setting, depending on your provider’s instructions. Avoiding certain medications or foods that could interfere with results may be advised, but this is rare for urine CRP testing.

How the Test Works

The urine sample is analyzed using a probe-based method to detect CRP, a marker of inflammation. This test identifies whether CRP is present in your urine, which can indicate localized inflammation in the urinary system.

Possible Results and Interpretation

A positive result (presence of CRP in urine) suggests inflammation, infection, or other conditions affecting the urinary tract. A negative result means no detectable CRP was found, but this does not rule out all causes of urinary issues. Interpretation depends on clinical context and other test results.