tTG IgA Coeliac Disease Blood Test
Uncover the hidden cause of your digestive symptoms.
The tTG IgA Coeliac Disease Blood Test is a targeted screening test for coeliac disease, an autoimmune condition triggered by gluten that damages the small intestine. It is suitable for adults and children experiencing symptoms such as bloating, diarrhoea, fatigue, unexplained weight loss, or anaemia, as well as for individuals with a family history of coeliac disease or other autoimmune conditions. This test measures the level of tissue transglutaminase IgA (tTG IgA) antibodies in the blood, which are typically elevated in untreated coeliac disease.
What is measured
- Tissue transglutaminase IgA (tTG IgA): an autoantibody that targets an enzyme in the gut lining, serving as a key marker for coeliac disease.
Why it matters
Coeliac disease affects approximately 1 in 100 people in the UK, yet many cases remain undiagnosed. Early detection through a simple blood test allows for timely dietary intervention, which can prevent long-term complications such as malnutrition, osteoporosis, and certain cancers. This test provides a clear, actionable result to guide further clinical assessment and support your journey to better digestive health.
- Tissue transglutaminase IgA (tTG IgA)
No special preparation required.
For blood tests, we recommend drinking plenty of water beforehand to ensure smooth sample collection. If you are taking any regular medication, continue to do so unless advised otherwise by your doctor.
Important Clinical Information:
This test is a screening tool to monitor and support your overall health. It does not replace your GP or consultant.
Always discuss your test results, especially any abnormal results, with your GP, who can interpret them in the context of your medical history and overall health.