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General Health
Can Your Blood Sugar Be Normal While Your Insulin Is High?
When patients think about diabetes or metabolic health, they usually think of blood sugar. That is understandable: glucose is one
October 21, 2026
The C-Reactive Protein (CRP) blood test measures the level of CRP, a protein produced by the liver, in your blood, which rises in the presence of inflammation.
If your CRP levels are high, it may point toward a number of health conditions that include but are not limited to, infections, autoimmune diseases, and chronic inflammatory diseases.
At our London-based City Walk-In Clinics, we generally recommend a CRP test when a bacterial infection is suspected. A CRP blood test helps in diagnosing infections and monitoring the severity of the condition.
People with chronic inflammatory conditions, such as rheumatoid arthritis, lupus, or inflammatory bowel disease, may also undergo regular CRP tests to monitor inflammation levels and disease activity.
You may also need a CRP blood test if you experience symptoms such as unexplained fever, joint pain or swelling, persistent fatigue, or skin rashes. Never hesitate to contact us if you are unsure whether this test is right for you.
We offer same-day appointments whenever possible, and our clinic is known for having no hidden fees, because we believe in full transparency. Plus, no phlebotomy fee is required for the CRP test.
Various factors can affect the levels of this protein in your blood. Such factors include:
CRP is measured in milligrams per litre, or mg/L. Normal results are usually less than 3 mg/L; results above this may indicate inflammation. Your healthcare provider will go over the results with you and let you know if any further action is necessary.
If your results are high, it may indicate a number of health concerns, including cardiovascular issues, because the test can also find inflammation of the arteries, which may be linked to heart disease. Other chronic diseases, such as diabetes, may also raise CRP levels.
The CRP test is an important tool in the diagnosis phase of health care. It supports diagnosis in the following ways:
Use our online booking engine or book your test by giving us a call.
On the online booking engine select the “appointment type” you need.
You will be seen by one of our friendly phlebotomists or trained clinicians.
Please make sure to talk about any recent surgeries and the medications you are currently taking with one of our specialists, as these can affect your CRP level.
A CRP blood test is a simple procedure. A blood sample will be taken from your arm and sent to the lab for analysis. The process is quick and generally painless.
Test results usually return in a few hours to a day. Bear in mind, if any irregularities are found, you might need additional testing.
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Hidden Charges
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No GP appointment requirement for blood tests
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Experienced doctors & a professional team.
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We offer a wide range of private blood tests in London. Same-day appointments are available 5 days a week.
We work with experienced consultants & healthcare professionals who have received positive feedback from our patients, and with whom we have established long-term relationships.
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