Transglutaminase Antibodies (IgA) – What Do Your Numbers Mean?
Have you had your Transglutaminase Antibodies (IgA) level measured and are unsure what the numbers mean? Here's a clear explanation of the normal range, what a high or low level might indicate, and when it makes sense to get tested.
What is the normal range for Transglutaminase Antibodies (IgA)?
What is the normal range for Transglutaminase Antibodies (IgA)?
Transglutaminase Antibodies (IgA) are primarily used to diagnose celiac disease. The normal range for P-Transglutaminase Antibodies (IgA) is less than 7 x 10³ arb.units/L, when the IgA level is ≥0.04 g/L on a normal gluten-containing diet. Values between 7 and 10 x 10³ arb.units/L are considered uncertain, while values above 10 x 10³ arb.units/L indicate a positive test. Reference intervals may vary between laboratories, and it is important to supplement with IgG antibodies in cases of IgA deficiency, which occurs in approximately 10% of celiac disease patients. In children under 2 years of age, the antibody response may be lower, requiring special attention when interpreting results.
What does a low level mean?
A low level of Transglutaminase Antibodies (IgA) typically means there are no signs of celiac disease, provided the patient is on a normal gluten-containing diet. However, if the level is low due to selective IgA deficiency, it may be necessary to measure IgG antibodies against transglutaminase. Symptoms such as fatigue, weight loss, or abdominal problems may still require further investigation to rule out other causes. Selective IgA deficiency can also be associated with an increased risk of infections and autoimmune diseases. It is recommended to consult a doctor for further assessment if symptoms persist.
What does a high level mean?
A high level of Transglutaminase Antibodies (IgA) is strongly correlated with celiac disease, an autoimmune disorder that causes inflammation in the small intestine upon gluten intake. Symptoms can include diarrhea, weight loss, fatigue, and iron deficiency anemia. In children, it can lead to growth retardation and poor thriving. Other causes of elevated levels may include dermatitis herpetiformis or other autoimmune diseases. If high levels are detected, the diagnosis should be confirmed with further tests such as HLA typing or small bowel biopsy. It is important to start a gluten-free diet under medical supervision to avoid complications.
Get Your Transglutaminase Antibodies (IgA) Level Tested
At Celto, you can order a blood test for Transglutaminase Antibodies (IgA) directly online – without a referral from your doctor and without long waiting times. We have over 34 sample collection sites at public hospitals across Denmark, and your samples are analyzed in the same accredited laboratories used by the rest of the healthcare system. You will receive your results directly on sundhed.dk, just like all other blood tests from the public system.
How it Works
When you order a blood test from Celto, you choose which markers you want to be tested – no doctor's referral needed. After your purchase, you will receive an email with a link to our booking system, where you choose a time and location. The blood sample itself is taken by authorized healthcare personnel and typically takes only a few minutes.
Where You Can Get Tested
Celto has over 34 sample collection sites at public hospitals and clinics throughout Denmark. You choose the location that suits you best among our partners, and there are typically available appointments within a few days. Find your nearest sample collection site →
How You Receive Your Results
Your blood samples are analyzed in the same laboratories used by your own doctor and the rest of the healthcare system – the exact same quality and the exact same tests. You will receive your results directly on sundhed.dk within a few business days, and Celto will also send an easy-to-understand review of your values so you know what the numbers mean.