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Tuberculosis blood test

Blood test to check for tuberculosis

You might need a TB blood test because you have symptoms of TB, or you might have been exposed to somebody with tuberculosis. Some people also need it because they are working or studying abroad and their visa medical examination requires a TB blood test. Healthcare workers are also often asked to have a Quantiferon test before they start work. To give you an even more accurate indication of tuberculosis infection, we can combine this with a chest x-ray at your request.

What's included in a TB blood test?

Blood test icon

This is a simple test to check to see if you've been exposed to tuberculosis. Please note it doesn't differentiate if you have active tuberculosis or latent infection (inactive or sleeping TB). This test is also called an IGRA test (interferon gamma releasing assay) In this TB blood test we check to see how much your white blood cells produce interferon gamma in response to a TB antigen – this is the bit of the TB bacteria that your immune system responds to. The final result will be positive or negative .

Quantiferon blood test

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Tuberculosis blood test price

The cost of a private TB test at our clinic is £125.

Tuberculosis blood test results

You’ll receive a personalised doctor reviewed report showing if your results are  either positive or negative and what to do after your TB blood test result. You’ll also receive personalised recommendations on how to stay healthy.

Dr Ravi Gowda

Dr Ravi Gowda, Consultant physician or one of his highly trained clinical colleagues will be looking after you. 

Who will be providing your TB test?
Book appointment online

1. Book an appointment online

Book and pay for your blood test appointment online.

Attend appointment

2. Attend your appointment 

Visit the clinic for your appointment and blood tests. 

Receive results

3. Get your blood test results

View your results on our secure online portal in 3-4 working days.

How it works
We're a team of trained experts

Experts in Infectious Diseases, General and Travel Medicine

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Over 21 years of experience in Travel Health

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Cared for more than

10,000  patients

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Over 150 5 star reviews on Google Reviews

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Frequently asked questions
  • As you will only be attending for the blood test, it will be quick, just 10-15 minutes.

  • You don’t need to bring anything with you to this blood test, however we do recommend wearing something warm as it makes it easier for us to take your blood

  • This is a not fasting blood test which means you can eat and drink before you attend.

  • Our Quantiferon TB blood test result usually takes 3 - 4 working days.

  • All Quantiferon tests are reviewed by our doctors and shared with you through our secure online portal. If it’s positive, please do not worry as it often suggests inactive infection rather than active tuberculosis with symptoms. We'll ask you to contact your GP for further assessment but if it’s urgent then we’ll call you, so please make sure you give us a contact number when you book your appointment.


Dr Ravi Gowda, Consultant in Infectious Diseases and Travel Medicine


Caitlin Lancaster, BSc

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