C-reactive protein (CRP) with high-sensitivity measurement

What Is hs-CRP Used For?

High-sensitivity CRP (hs-CRP) is primarily used to evaluate the level of systemic inflammation in your body. It can help doctors assess whether you’re at higher risk for conditions like cardiovascular disease, especially if you have risk factors such as high blood pressure, diabetes, or smoking. It may also be used to monitor ongoing inflammation in conditions like rheumatoid arthritis or after certain surgeries.

How Is the Test Performed?

A small blood sample is drawn from a vein, usually in your arm. The blood is processed to separate the serum or plasma, where the CRP protein is measured using a sensitive immunoassay technique. Results are typically available within 24 to 48 hours.

What Does a High or Low Result Mean?

Results are not given in absolute numbers because reference ranges vary by lab and individual factors. A higher-than-normal hs-CRP level may indicate increased inflammation, while a lower level suggests reduced inflammation. Your doctor will interpret results in the context of your overall health and other tests.

Common Reasons for Testing

Your doctor may order hs-CRP testing if you have symptoms of inflammation, risk factors for heart disease, or if you’re undergoing treatment for a chronic condition like arthritis. It can also be used as a screening tool in certain populations to monitor long-term health trends.