C1 Reactive


A series of tests that check for inflammation in the body and to determine whether any anti-inflammatory medicine is working.

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schedule1 day turnaround   info
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C1 Reactive Protein

About this test

C1 Reactive Protein, CRP, is a protein produced in the liver that is present during episodes of acute inflammation or infection.

C1 Reactive Protein plays the important role of interacting with the complement system, an immunologic defense mechanism.

C1 Reactive Proteintests check for inflammation in the body, flare-ups of inflammatory diseases such as rheumatoid arthritis, lupus, or vasculitis and to determine if anti-inflammatory medicine is working to treat a disease or condition.

It is not a specific test which means it cannot pinpoint the exact location of any inflammation.

A low C1 Reactive Protein level does not always mean that there is no inflammation present. Levels of C1 Reactive Protein may not be increased in people with rheumatoid arthritis and lupus. The reason for this is unknown.

C1 Reactive Protein is also an independent risk factor for cardiovascular risk. Traditional risk factors for coronary heart disease (cholesterol and blood pressure) fail to identify nearly 50% of individuals who will eventually have a heart attack.

How it works

Collect Sample

We send you an easy-to-use kit to collect your blood sample.

Post Sample

Post your sample to our lab in the prepaid envelope provided.

View Results

View results securely in your own personal dashboard.

Important Information

Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.

Tests Included

Inflammation Marker

C Reactive Protein (CRP) is a protein made in the liver in response to inflammation or infection in the body. It can rise very rapidly when tissues are inflamed as a result of infection. It is a non-specific test as although it can identify that infection and inflammation is occuring in the body, it cannot specify where. 

A raised level will normally be investigated further to identify the source of the inflammation. 

Finger-prick blood sample collection kit

We will send you your C1 Reactive Protein finger-prick blood test sample collection kit which contains everything you need to take your blood sample in the comfort of your own home. If you are unsure about completing a finger-prick blood sample collection you will have the opportunity to select a clinic-based venous blood sample collection or choose to go our London laboratory during the checkout process.

How to collect a finger-prick blood sample

Postage & packaging

Your C1 Reactive Protein test includes 1st class postage and packaging for you to send your blood sample directly to our laboratory for analysis. If you live in an area where you cannot rely on the post or you simply want to ensure that your sample arrives at the laboratory the following day, you may wish to send your blood sample guaranteed next day delivery for extra reassurance.

Private laboratory analysis

Your blood sample will be analysed at one of our chosen laboratories. You can be assured of fast, accurate results from one of our accredited independent providers of clinical diagnostic tests.

Interpretation of results

Our medical team will comment on out-of-range blood test results and give you follow-up advice where necessary. If you need it, a PDF copy of your C1 Reactive Protein test results can be downloaded for your doctor.

Secure online account with mymedichecks.com

Once you have placed your order you will receive login details to mymedichecks.com where you can manage your account, track your orders and view your C1 Reactive Protein test results.

Health and Lifestyle tracker

Stay motivated by filling in your online health and lifestyle questionnaire and seeing how improvements in your lifestyle can influence your test results. Your medical and family history gives us vital information when interpreting your results.

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