C-reactive protein (CRP) quantitative probe

Why This Test Is Done

Your doctor may order this test to check for signs of inflammation, monitor chronic conditions (like arthritis or heart disease), or evaluate how your body is responding to treatment for an illness or injury. It can also help detect early signs of infections or inflammation that aren’t easily identified by other tests.

What to Expect Before the Test

No special preparation is needed for this blood test. You may be asked to fast for 8–12 hours before the draw if your lab requires it, but this is not always the case. Bring your test request or doctor’s note if you’re unsure. Avoid strenuous activity or heavy meals 24 hours before testing.

What Happens During the Test

A healthcare professional will insert a small needle into a vein in your arm to collect a blood sample. You may feel a slight pinch, but the process usually takes just a few minutes. The blood is then sent to a lab for analysis.

What the Results Mean

Results are reported in milligrams per deciliter (mg/dL). Higher than normal levels may indicate inflammation, infection, or other health issues. Your doctor will interpret the results in the context of your medical history and symptoms. Ask your doctor to explain what your specific result means for you.