MNT Test Interpreter: C-reactive protein for ankylosing spondylitis MNT Test Interpreter: C-reactive protein for ankylosing spondylitis

Start Tour

Test Interpreter:

presents

Test Interpreter: C-reactive protein for ankylosing spondylitis

Introduction

Normal to minor elevation

Moderate elevation

Marked elevation

CRP levels over 10.0 mg/dL often signal an acute infection, injury, or blood vessel inflammation. A doctor may order follow- up tests to determine the cause of inflammation and treatment options.

CRP levels between 1.0–10 mg/dL are moderately elevated, which may be a sign of high disease activity in AS or another health condition. Elevated CRP is associated with increased heart disease risk in AS.

For most adults, CRP levels are normal at less than 0.3 mg/dL and normal to slightly elevated at 0.3–1.0 mg/dL. It is possible to have normal CRP levels with active AS, so doctors also consider symptoms and other test results.

C-reactive protein for ankylosing spondylitis

C-reactive protein (CRP) is a marker of inflammation. Ankylosing spondylitis (AS) is one of several health conditions that may cause elevated CRP. Other autoimmune conditions, infections, or lifestyle factors may also increase CRP levels. The standard diagnostic process for AS does not include a CRP test. But if a person has AS, their doctor might order a CRP test to check for signs of disease activity or another health condition that may be causing symptoms. They will also ask about symptoms and will likely order imaging tests.