Curious if low-level inflammation might be affecting your health? A High-Sensitivity CRP Blood Test measures tiny amounts of C-reactive protein, which can help you understand underlying inflammation that may influence your long-term risk of heart disease and other conditions.




CRP (High Sensitivity) Blood Test
- Results estimated in 2 working days
- Convenient testing options
- Bespoke doctor’s report
- Free delivery
Measuring high-sensitivity C-reactive protein (hs-CRP) to detect low-level inflammation. Consider upgrading to our Heart Disease Risk Blood Test for a full lipid panel too.
How do you want to take your sample?
Please choose one option below-
Collect your own finger-prick blood sample at homeFreeWe’ll send you everything you need to collect your blood sample from your finger at home.
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Book a venous draw at a clinic Venous+£35Visit one of our national clinic partners for a nurse to take your venous blood sample from a vein in your arm. We’ll email you instructions on how to book after we’ve processed your order.
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Book a venous draw at home with a nurse Venous+£59Book a home nurse appointment for a nurse to take your venous blood sample from a vein in your arm.
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Self-arrange a professional sample collection VenousFreeMake an appointment at a phlebotomy clinic to have your venous blood sample taken. You will be responsible for arranging your appointment and any additional fees.
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How it works
You have the flexibility to choose what works best for you. Enjoy the comfort of having a friendly nurse visit your home for a quick blood draw, opt for a convenient visit to one of our nationwide partner clinics, or self-arrange a draw at a location that suits you.
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What's in the test?
Inflammation
hs-CRP
Learn more
How to prepare for your test
Prepare for your CRP (High Sensitivity) Blood Test by following these instructions. Take this test when any symptoms of short-term illness have settled.
Test limitations
CRP is a non-specific biomarker, and this means it can be raised for many reasons. These include recent or current infections, surgery, pregnancy, diabetes, and chronic inflammatory conditions. In these cases, using an hs-CRP inflammation test as a measure of heart disease risk is less useful, as it may indicate you have a high risk when you don’t.
Hormonal contraceptives have also been shown to increase hs-CRP levels and may be associated with a higher result.
Our inflammation blood test doesn’t take other heart disease risk factors into account, such as your age, blood pressure, family history, smoking status, and cholesterol levels, which also contribute to your overall risk.
For more comprehensive insights into your risk of heart disease, you could take our Heart Disease Risk Blood Test or Advanced Heart Disease Risk Blood Test.
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FAQs
What is an hs-CRP blood test?
Our hs-CRP test measures your CRP level — it’s sensitive enough to detect even the smallest increases, which indicate low-level inflammation in your body. Even slight increases in CRP have been linked to an increased risk of heart disease, which could lead to a heart attack or stroke.
You can take our at-home CRP test if you have risk factors for heart disease, or if you have high cholesterol and want to check if there are any other factors which could increase your risk of heart disease.
If you’ve been diagnosed with cardiovascular disease, you can also use it to monitor your heart health with regular testing.
Our blood test for inflammation can be used alongside other tests, such as our Cholesterol Blood Test, to give you a fuller picture of your overall risk of heart disease.
What causes chronic low-level inflammation?
What is CRP?
C-reactive protein (CRP) is made by your liver. Its level increases in response to inflammation, as part of your body’s natural defence mechanism to fight injury or infection.
Inflammation can be acute (sudden) and temporary, and this type of inflammation is usually helpful. For example, if you cut yourself, you will usually notice signs of inflammation, such as swelling, pain, and redness.
But sometimes, the immune response can go into action for long periods, causing low-level inflammation that lasts for months, or even years (known as chronic inflammation). This type of inflammation may cause no noticeable signs or symptoms, but it can be harmful.
What level of hs-CRP indicates a risk of heart disease?
Because CRP reflects levels of inflammation, generally the lower your level, the better. Typically, if you have a level less than 5 mg/L, acute inflammation, which is sometimes seen with infections or inflammatory conditions, is unlikely.
In the context of heart disease, the ranges shown in the table below are given as a guide, based on hs-CRP alone. However, other risk factors should also be taken into account, such as family history and lifestyle factors
CRP (mg/L) | |
Low risk | <1 |
Intermediate risk | 1-3 |
Higher risk | >3 |
How can I reduce my hs-CRP level?
For low-level chronic inflammation, the best way to lower your CRP level is through healthy lifestyle changes, like following an anti-inflammatory diet, losing weight if you’re overweight, increasing your activity levels, managing stress, reducing your alcohol intake, and stopping smoking.
Where CRP is significantly raised, treatment will depend on the underlying cause. For example, some infections or inflammatory conditions may need treatment with antibiotics or anti-inflammatory medications.
Can I take an hs-CRP test at home?
How can I check my hs-CRP level at home?
What foods can help reduce inflammation?
Adopting an anti-inflammatory diet, which focuses on replacing sugary, refined carbohydrates with more whole foods, can help to reduce inflammation in your body.
A diet full of fruits, vegetables, and wholegrains, such as the Mediterranean diet, provides an array of antioxidants. These can help to neutralise the free radicals that contribute to inflammation. In fact, markers of inflammation including hs-CRP have been found to be lower in people following a vegan diet compared to non-vegans.
Can managing my stress levels help reduce inflammation?
Chronic stress can contribute to inflammation, so finding ways to manage stress can really pay off over time. Not only can it make you feel healthier, but it can also help reduce your long-term risk of chronic disease.
There are many ways to beat stress, including practising mindfulness and getting a good night’s sleep. Taking up a physical activity you enjoy such as yoga, walking, or dancing can also improve your mental wellbeing by boosting feel-good chemicals in your brain.