C-reactive protein, serum/plasma concentration

What Is C-Reactive Protein Used For?

CRP is primarily used to monitor inflammation in the body. It can help identify infections (such as pneumonia or urinary tract infections), detect autoimmune conditions (like rheumatoid arthritis), and assess how well treatments for inflammation are working. It may also be used to evaluate risk for heart disease or other chronic conditions.

How Is the Test Performed?

A small blood sample is taken from a vein in your arm. The blood is sent to a lab where it is analyzed to measure CRP levels. This test is typically done using a blood draw, but some labs may use a fingerstick for convenience.

Why Might You Need This Test?

Your healthcare provider may order a CRP test if you have symptoms of infection, chronic inflammation, or if you’re at higher risk for certain conditions like heart disease. It can also be used as part of routine check-ups or to monitor ongoing health conditions.

What Do My Results Mean?

CRP results are not typically interpreted alone but are often compared to your symptoms and other test results. Higher levels may indicate inflammation, while lower levels suggest reduced inflammation. Your doctor will discuss the results in the context of your overall health.