C-reactive protein (CRP) by turbidimetry (high-sensitivity)

This test measures high-sensitivity C-reactive protein (hs-CRP), a substance your liver produces when there is inflammation in your body. Your doctor may order it to help assess your risk of heart disease or stroke, to check for inflammation, or to see how well a treatment is working over time.

Your doctor may order this test to check for signs of inflammation, monitor conditions like rheumatoid arthritis, heart disease, or infections, or evaluate responses to treatments. High levels may signal underlying issues needing attention.

Higher hs-CRP levels generally mean there is more inflammation somewhere in your body. A result above 3.0 mg/L has been associated with an increased risk of cardiovascular problems, while a low value suggests lower risk. Your doctor will interpret your number together with your other test results, symptoms, and overall health history.

Results are not given in absolute numbers here, but doctors compare them to your specific health context. Elevated levels often indicate active inflammation, while lower levels suggest reduced inflammation. Always discuss results with your healthcare provider.

The sample is collected with a simple blood draw. A healthcare professional will clean the skin on the inside of your elbow, wrap a band around your upper arm, and insert a small needle into a vein to collect blood into a tube. The procedure usually takes only a few minutes and causes little discomfort.

A blood sample is drawn from a vein, usually in your arm. You may feel a brief pinch, but it’s quick. The sample is sent to a lab for analysis.

In most cases, no special preparation is needed and fasting is not required. However, tell your doctor about any recent illness, infection, injury, vigorous exercise, or vaccination, since these can temporarily raise hs-CRP levels. Also mention all prescription medicines, vitamins, and supplements you currently take.

Avoid strenuous activity or intense exercise 24 hours before testing, as it may temporarily raise inflammation markers. Also, inform your doctor about any medications or supplements you’re taking.