Diagnostics·Diagnostics
CRP blood test
Informed by recognized medical guidance
Overview
A CRP blood test measures the level of C-reactive protein in your blood. CRP is a substance your liver makes when there is inflammation somewhere in your body. Inflammation is your body's natural response to injury or infection. So this test can help doctors find out if you have inflammation and how severe it is.
Key facts
- CRP stands for C-reactive protein.
- A high CRP level does not tell exactly where the inflammation is – further tests are usually needed.
- Your CRP level can change quickly – it rises within hours of inflammation starting and drops back down once the inflammation goes away.
Yes, CRP blood tests are very commonly performed in hospitals and clinics around the world. They are a routine part of checking for inflammation.
Anyone can have a CRP test if their doctor suspects inflammation. It is used for people of all ages, from children to older adults.