World time

Laboratory Testing Online / Biochemistry

C-reactive Protein (CRP)

To measure a protein that rises in response to inflammation.
Test profileBIC-reactive Protein (CRP)

Test and specimen

What is being examined?

Test
C-reactive Protein (CRP)
Department
Biochemistry
Typical sample or measurement
Serum or plasma
Before the test

No special preparation is usually needed. Results should be interpreted with timing and the clinical picture.

Clinical interpretation

Laboratory results should be interpreted by a qualified professional using the correct reference interval, method, symptoms, history and other findings. A normal or abnormal value rarely confirms or excludes a condition by itself.

01

Why the test is performed

To measure a protein that rises in response to inflammation.

02

What the test is used for

Assessing and trending inflammation alongside symptoms, examination and other tests; it is not specific to one disease.

03

How the test is performed

An immunoassay measures CRP concentration. High-sensitivity CRP is a different application used in selected cardiovascular-risk contexts.

04

Conditions and diseases considered

May rise with bacterial or viral infection, inflammatory disease, tissue injury and many other conditions.

05

Recommended further tests

CBC, cultures, ESR, organ-specific tests, imaging or autoimmune studies guided by the clinical presentation.

Primary public reference

Continue with the official patient guide.

COHSEW has summarised this information for navigation and awareness. Follow the source and your healthcare provider’s current instructions for the complete context.

C-Reactive Protein TestOpen official source

Need professional guidance?

Discuss test appropriateness and results with a qualified clinician.

Return to test portfolio ↗