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CRP Blood test

Understanding C-Reactive Protein (CRP) Levels With Our CRP Blood Test

C-reactive protein (CRP) is a crucial marker produced by the liver in response to inflammation. Monitoring CRP levels can reveal important information about your overall health. Elevated CRP levels can indicate a range of diseases and autoimmune disorders. Understanding and managing these levels is essential for maintaining good health and preventing chronic diseases.


One Day Tests offers a comprehensive CRP blood test that accurately measures CRP levels, providing results typically within 24-48 hours. By identifying and addressing elevated CRP levels early, you can make informed decisions about lifestyle changes, medical treatments, and proactive health management.

CRP test tube

What is C-Reactive Protein (CRP) and Why Is It Important?

C-reactive protein (CRP) plays a vital role in the body's immune system by signalling the presence of inflammation, which can be due to various causes such as infections or chronic diseases. Elevated CRP levels are a marker of inflammation and can indicate a range of health issues from acute infections to chronic conditions like cardiovascular diseases and autoimmune disorders.


CRP levels are measured through a blood test, which quantifies the amount of CRP in the blood. This test is simple and quick, often yielding results within a day or two. Normal CRP levels are typically below 3 mg/L. Levels above this range suggest inflammation, with levels over 10 mg/L often pointing to significant inflammation or infection that may require medical attention.


Inflammation and CRP


Inflammation is the body's natural response to injury, infection, or harmful stimuli. It is a critical component of the immune system's defence mechanism, aimed at removing harmful agents and initiating the healing process. Inflammation can be acute, occurring for a short duration, or chronic, persisting over a longer period due to continuous exposure to harmful agents or underlying health conditions.


CRP is a non-specific marker, meaning it indicates the presence of inflammation but does not pinpoint its exact cause. However, it is an essential tool for diagnosing and monitoring various inflammatory conditions. Elevated CRP levels can prompt further investigations to identify the underlying cause of inflammation. Regular monitoring of CRP can also help in assessing the progress of treatment and making necessary adjustments to manage inflammation effectively.

Back pain

Illnesses Associated with CRP Levels

Elevated CRP levels are commonly associated with several health conditions:


  • Cardiovascular Diseases: High CRP levels can indicate an increased risk of heart disease and stroke.

  • Autoimmune Disorders: Conditions such as rheumatoid arthritis and lupus often present with elevated CRP levels.

  • Infections: Bacterial infections and other acute inflammatory conditions can cause significant spikes in CRP levels.

Low CRP levels typically indicate low levels of inflammation and are generally not a cause for concern. However, persistently high CRP levels can suggest chronic inflammation, which is linked to long-term health issues like chronic inflammatory diseases and certain cancers.

Causes of Elevated C-Reactive Protein (CRP) Levels

Elevated CRP levels indicate inflammation in the body and can be caused by various conditions. One of the most common causes is infections, including bacterial, viral, or fungal infections, which trigger an acute inflammatory response. Chronic inflammatory diseases such as rheumatoid arthritis and lupus can also lead to persistently high CRP levels.


Cardiovascular diseases, including heart disease and stroke, are often associated with elevated CRP levels due to inflammation within the blood vessels. Other factors that can cause high CRP levels include obesity, smoking, and a sedentary lifestyle, which contribute to chronic inflammation. Additionally, certain cancers and chronic diseases such as diabetes can also result in increased CRP levels.

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How a C-reactive Protein (CRP) Blood Test Helps Monitor CRP Levels

Blood testing is a crucial method for monitoring CRP levels, providing valuable insights into the body's inflammatory status. The C-reactive protein (CRP) blood test offered by One Day Tests measures the amount of CRP in your blood.


By regularly monitoring CRP levels through blood tests, individuals can detect early signs of inflammation, track the effectiveness of treatments, and make informed decisions about their health management.


One Day Tests makes this process efficient and accessible with our comprehensive CRP blood test, which typically provides results within 24-48 hours. Our state-of-the-art health dashboard allows you to track CRP levels over time, offering visual trend analysis and personalised insights.

Our C-Reactive Protein Blood Test

Keep On Top of Your CRP Levels With One Day Tests

At One Day Tests, we are committed to empowering you with the knowledge and tools needed to take proactive control of your health. Our comprehensive CRP blood test, user-friendly health dashboard, and expert insights are designed to provide clear, actionable answers about your inflammatory status.


Get in touch by phone at 0845 527 07 67, email us at hello@onedaytests.com, or message us on WhatsApp. With our in-house laboratory, we cater to bespoke testing needs, ensuring you get the exact panel tailored to your specifications. Take the first step towards better health today with One Day Tests.

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