A normal CRP (C-reactive protein) level
A normal level of C-reactive protein (CRP) in the blood in the UK is less than 5 mg/L.
What is CRP?
- CRP is a protein made by the liver that indicates inflammation
- CRP levels rise within hours of tissue injury, infection, or inflammation
- CRP levels can be used to monitor the activity of diseases like infections, autoimmune disease, and cancer.
What can cause high CRP levels?
- Infections, including sepsis, or most bacterial, viral and fungal infections
- Autoimmune diseases like rheumatoid arthritis (RA) and ulcerative colitis (UC)
- Cancer
- Cardiovascular disease, like a myocardial infarction (heart attack)
- Major trauma.
Note. Strangley, CRP can be low in active lupus (SLE).
