Clarilab

Inflammation and immunity

CRP test

Also called C-reactive protein

A protein the liver makes during inflammation or infection.

Typical range
Below 5 mg/L (some labs below 10).
Usual recheck
About 1 month when out of range

Why it's done

Helps judge how serious an infection or inflammation is and whether it is improving.

What a high result can mean

Infection (very high often bacterial) or inflammation.

Got a report with CRP?

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Included in these checkups

Fever for more than 2–3 days

More inflammation and immunity tests

ESRHow fast red cells settle in a tube; a general marker of inflammation. Rheumatoid factor (RA)An antibody found in many people with rheumatoid arthritis. ANAAntibodies seen in autoimmune diseases such as lupus.