Inflammatory Markers – What CRP and ESR Reveal About Your Health
By Tharb Faisl
What Are Inflammatory Markers? Inflammation is your body’s natural response to injury, infection, or chronic illness — but when it becomes persistent or excessive, it may signal underlying disease.
Two of the most important blood tests for inflammation are:
- CRP (C-Reactive Protein)
- ESR (Erythrocyte Sedimentation Rate)
These tests help detect hidden inflammation even when symptoms seem vague or unexplained — such as chronic fatigue, joint pain, or autoimmune flare-ups.
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What’s the Difference Between CRP and ESR?
| Test | What It Measures | Why It’s Useful |
| CRP | A protein produced by the liver in response to inflammation | Detects early or acute inflammation, infection, and autoimmune activity |
| ESR | The rate at which red blood cells settle in a test tube | Indicates chronic inflammation or long-standing disease activity |
They are often ordered together to give a broader picture of inflammatory health.
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When Should You Get a CRP or ESR Test?
Consider booking an inflammation screen if you have:
- Persistent fatigue or malaise
- Joint or muscle pain
- Unexplained fevers
- Autoimmune conditions (e.g., rheumatoid arthritis, lupus)
- Ongoing infections or recovery from illness
- Monitoring of inflammatory disorders or treatment effectiveness
- General wellness screening when symptoms are unclear
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What’s Included at Marylebone Diagnostic Centre?
Often included in our Cardiac Profile, Well Person, and Fatigue Panels
Combine with: FBC, Vitamin D, B12, Thyroid Function, Iron Profile
Located near Baker Street, with easy access from Marylebone, Paddington, Harley Street, Kings Cross, and Euston.
Why Testing Inflammation Matters
Chronic inflammation is linked to a wide range of conditions, including:
- Heart disease
- Type 2 diabetes
- Autoimmune disorders
- Long-term fatigue
- Depression and cognitive changes
- Digestive conditions like IBS or IBD
Catching and tracking inflammation early allows for quicker treatment and better outcomes.
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Real Patient Insight
“I felt off for months — tired, joint pain, just not myself. My CRP was sky-high. The Marylebone team helped me identify the source of the problem and get the treatment I needed.”
– Hannah, 42, Harley Street
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FAQs – CRP and ESR Testing
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Find answers to long-standing symptoms. Our trusted team at Marylebone Diagnostic Centre is ready to help.
✔️ Same-day appointments
✔️ Quick, accurate results
✔️ Supportive aftercare
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