HS-CRP stands for High-Sensitivity C-Reactive Protein. It is a laboratory test that measures the level of C-reactive protein (CRP) in the blood. CRP is a protein produced by the liver in response to inflammation in the body.HS-CRP is called "high-sensitivity" because it can detect even small amounts of CRP in the blood, making it a more precise test for assessing inflammation, particularly low-level chronic inflammation.