C-Reactive Protein (CRP)
CRP is an acute-phase protein synthesized rapidly by the liver to direct immune defenses during inflammation or infection.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
0 – 5 mg/L
0 – 5 mg/L
0 – 5 mg/L
What does a low result mean?
A level below 5 mg/L is optimal and confirms the absence of active systemic inflammation.
What does a high result mean?
A modest increase (5 to 20 mg/L) very commonly accompanies a standard head cold, minor viral bug, or intense workout.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Could this mild rise simply reflect a recent cold or seasonal bug?
- Would a recheck in two weeks confirm return to baseline?
- Does this align well with my white blood cell count?
Do you have a full blood test report?
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Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.