Order a celiac disease test and check for gluten antibodies
Anti-TTG and Endomysium IgA: a commonly used celiac disease screening.
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Biomarkers Included
2 biomarkersAnti-TTG (Tissue Transglutaminase), Endomysium IgA
In celiac disease, your immune system reacts to gluten, the protein in wheat, barley and rye. Symptoms can range from abdominal pain and bloating to fatigue and nutrient deficiencies.
If you want to order a celiac disease test, this panel measures two antibodies: anti-TTG and endomysium IgA. The sample is taken at a certified sample point, you order online, need no referral and receive your results with a doctor's assessment.
Why this test?
In celiac disease, your immune system may produce specific antibodies in response to gluten. Anti-TTG (tissue transglutaminase antibodies) and endomysium IgA are often used together, because they can complement each other in mapping that immune reaction.
This combination is often used as a first step when celiac disease is suspected, or as a gluten intolerance test when symptoms might be related to gluten.
Who is this test for?
This celiac disease test may be relevant for men who:
- have digestive complaints such as bloating, diarrhea or abdominal pain after eating gluten-containing foods
- have celiac disease in the family and want to check their antibody levels
- experience unexplained fatigue, nutrient deficiencies or skin issues that could be associated with gluten sensitivity
What is tested?
- Anti-TTG (tissue transglutaminase) (u/ml): antibodies directed against the enzyme tissue transglutaminase. Elevated levels may be associated with celiac disease.
- Endomysium IgA: antibodies targeting the endomysium, a layer of connective tissue. Their presence can support an anti-TTG finding.
What can this test tell you?
Elevated anti-TTG levels, particularly when combined with a positive endomysium IgA, may suggest an autoimmune response to gluten. Antibody levels alone, however, are not enough to confirm celiac disease.
A doctor can determine whether additional evaluation, such as further testing or a specialist referral, is appropriate based on your results. So see your result as a starting point, not a final verdict.
How is the sample collected?
Blood is drawn at a certified sample point. There are 650+ locations across the Netherlands, which you choose yourself after ordering. The appointment usually takes 10 to 15 minutes.
You arrange this without your GP: no referral, just choose a location and time that suit you. The draw is done by trained staff.
When is this test useful?
This panel may be useful with persistent digestive complaints, unexplained weight loss, chronic fatigue or nutrient deficiencies that could have an autoimmune component. It can also be relevant if a family member has celiac disease.
Because it is a blood test without a referral, you can decide yourself when to begin.
What do the results mean?
Your result shows each marker alongside a reference range. Positive or elevated values may indicate an immune response to gluten, but do not constitute a diagnosis on their own.
Important: negative values may not be reliable if you have already stopped eating gluten. A doctor can place your result in context and advise on any next steps.
What happens after the results?
Your results are usually in your personal dashboard within 2 working days of the blood draw, with a reference range and an explanation for each marker. Because celiac disease calls for professional confirmation, it is wise to discuss your result with a doctor, whether it is positive or negative. If you want a broader look at possible nutrient gaps, the vegetarian nutrient panel can be a useful addition.
Every blood test result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Frequently Asked Questions
No. This is not a self-test you do at home. Your blood is drawn at a certified sample point and analyzed in a lab, with a doctor's assessment. You only arrange it yourself online, without a referral.
Yes. Keep eating gluten-containing foods for at least 6 weeks before the test. Stopping too early can lower antibody levels and cause a falsely negative result.
No. Antibody levels alone do not confirm celiac disease. A doctor can determine whether additional evaluation is needed to reach a diagnosis.
Only if the test asks for it; it says so. Fasting means nothing to eat or drink after 22:00 the evening before, except water, for at least 8 hours. No coffee or tea that morning. Have your blood taken before 10:00.
The test costs €184,-, including the blood draw. You pay it yourself and no draw fee comes on top.
No. After you order we arrange the referral through ZorgDomein, within one business day; orders after 17:00 or at the weekend start the next business day. You receive a ZorgDomein email with a barcode, and you show it at the draw site. At a few draw sites you fix the time on your order page, or we do it.
No. What you request yourself falls outside the basic Dutch insurance. You pay yourself, and your deductible (eigen risico) is not touched.
Count on one business day, or a day more if you order after 17:00 or at the weekend. That is how long the referral email takes, and without a referral you are not drawn. Then you can simply walk in at some draw sites; at the rest you book an appointment. Every location states it.
Two things: the barcode from the ZorgDomein email and a valid ID. You show the barcode on your phone. If you have no BSN, the email has no barcode; print the referral form from the link then.
Take medication as usual unless your own doctor said otherwise. Some markers ask for no heavy training for 48 hours or no alcohol for 24 hours. The test and the instructions after your order tell you what applies to you.
You show your barcode and a valid ID, and the draw site takes blood. About a quarter of an hour in total.
Yes. Every result is assessed by a BIG-registered doctor, who explains your values in your account. Treatment you talk over with your GP.
At an independent, certified laboratory from the Caliberhealth network, spread across the Netherlands. That network also runs the draw sites; they are not owned by Caliberhealth. Reference values can differ a little per laboratory.
No. Your test does not pass your GP and does not go into your medical record. A healthcare provider gets your data only with your written consent, and it is never sold. Testing anonymously is not possible: a valid result needs your name, date of birth and a valid ID.
What We Test
| No. | Biomarker | Unit |
|---|---|---|
| 01 | Anti-TTG (Tissue Transglutaminase) | u/ml |
| 02 | Endomysium IgA | — |
| Your results are usually in your Caliberhealth account within 2 working days of the blood draw. The laboratory states a longer turnaround for Anti-TTG (Tissue Transglutaminase) and Endomysium IgA. | ||
Preparation
-
Keep eating gluten
RequiredEat gluten every day, in more than one meal, for at least 6 weeks before the draw. If you already eat gluten-free, the test can come back falsely negative.
- Water is always fine. Drink as usual beforehand, it makes the draw easier.
- Take your usual medication, unless your own doctor told you otherwise.
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