Description
Coeliac Screen Blood Test
A Coeliac Screen Blood Test helps detect whether your body is reacting abnormally to gluten — the protein found in wheat, barley, and rye. It’s primarily used to check for coeliac disease, an autoimmune condition where eating gluten triggers the immune system to attack the lining of the small intestine.
The test works by measuring specific antibodies in your blood, tissue transglutaminase antibodies (tTG-IgA). And IgA, If these are elevated, it could indicate coeliac disease.
You might consider having this test if you’re experiencing ongoing digestive issues like bloating, stomach pain, diarrhoea, or constipation, or if you’re struggling with fatigue, unexplained weight loss, iron deficiency, or skin rashes. It’s also relevant if you’ve been dealing with fertility problems or irregular periods, or if someone in your family has been diagnosed with coeliac disease.
To get accurate results, it’s important to be eating gluten daily in the weeks leading up to the test. If you’ve already cut gluten from your diet, the results may not show the antibodies, even if you do have coeliac
How often should I have a Coeliac Screen Blood Test?
We recommend testing once per year.
Our Nurses visit your Home or Work to take your blood.
Pick a time and date to suit you.
Your results are available online within days of your blood being taken.
Other Questions
- Ongoing digestive issues like bloating, diarrhoea, or constipation
- Unexplained fatigue, weight loss, or low mood
- Iron deficiency anaemia or other nutrient deficiencies
- A family history of coeliac disease
- An autoimmune condition like type 1 diabetes or thyroid disease
- A skin condition like dermatitis herpetiformis
- Gluten antibodies
Take the blood test as early as possible. Ensure you have been eating gluten weeks leading up to the test.
Collection method: Venous blood
Results available: 1-2 days after the sample has reached the laboratory.
IgA,Tissue Transglutaminase
The tTG-IgA test is one of the most commonly used blood tests to screen for coeliac disease — an autoimmune condition triggered by eating gluten, It detects IgA antibodies against tissue transglutaminase (tTG), an enzyme found in the intestine. In people with coeliac disease, eating gluten causes the immune system to produce these antibodies, which then attack the gut lining.
IgA
IgA (Immunoglobulin A) is an antibody — a type of protein produced by your immune system to help fight infections. It’s one of the five main types of immunoglobulins (IgG, IgM, IgA, IgE, and IgD), and it plays a key role in immune function, especially in mucosal areas like the respiratory and gastrointestinal tracts.
How it Works
1. Order a Test
Order your test, and then Answer the Questions about why you’re taking that test.
Our nurse will contact you for dates, so they can take your blood sample at your home.
Our nurse will then send your sample to our laboratory.
2. Our laboratory team run the tests
Our skilled laboratory staff conduct your blood tests in a clean and secure environment, ensuring accuracy and reliability.
Each test follows strict protocols to maintain the highest quality standards.
3. Receive Your Results within 7 days
We will email you to inform you that your blood test results are ready.
The email will have a PDF report attached, sent directly to your inbox.
4. Monitor your levels over time
With regular ongoing tests and reports, you can track your results. The reports can be shared with your GP.
Check if you’re improving healthily or where changes could be made.
