Compare this test’s laboratory options
Gliadin (Deamidated) Antibody (IgG, IgA)
Quest Diagnostics1 test optionFrom $64.18
Gliadin (Deamidated) Antibody (IgG, IgA)
Quest DiagnosticsCatalog information reviewed: August 24, 2026 by the Sunridge Medical clinical team.
What this laboratory test evaluates
Gliadin (Deamidated) Antibody (IgG, IgA)
This test is crucial for diagnosing celiac disease by detecting antibodies against gliadin, a key protein in gluten. While gliadin antibodies can appear in people without celiac disease, making the test less specific, recent advancements have improved its accuracy. The test now focuses on deamidated gliadin peptides, which have a stronger reaction with antibodies in celiac patients, offering a more precise diagnosis compared to traditional gliadin antibody tests.
What patients is this test right for?This test is particularly useful for individuals showing symptoms of celiac disease or those with a family history of the condition.
Common Symptoms of Celiac Disease:• Stomach pain
• Bloating
• Diarrhea or constipation
• Anemia
• Weight loss
• Feeling tired all the time
What type of sample is required for this test?1 mL serum.
Test ResourcesFor more information on this test and its importance in diagnosing celiac disease, consult healthcare professionals or visit relevant medical websites.
Additional test information
Gliadin (Deamidated) Antibody (IgG, IgA) – This test is crucial for diagnosing celiac disease by detecting antibodies against gliadin, a key protein in gluten. While gliadin antibodies can appear in people without celiac disease, making the test less specific, recent advancements have improved its accuracy. The test now focuses on deamidated gliadin peptides, which have a stronger reaction with antibodies in celiac patients, offering a more precise diagnosis compared to traditional gliadin antibody tests.
Collection and processing
- Sample type: Serum
- Fasting: No
- Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected
How Sunridge uses laboratory information
Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.
Before requesting this test
Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.
Common questions about this laboratory test
- What sample does this test require?
- The listed sample type is Serum. Confirm current collection instructions in the approved order.
- Does this test require fasting?
- The current catalog record lists fasting as: No. Follow the instructions supplied with the approved order.
- How long does laboratory processing usually take?
- Results should be available in 2 – 5 business days after the sample is collected. Timing can change after collection or if a laboratory requires additional review.
About this test
Gliadin (Deamidated) Antibody (IgG, IgA)
This test is crucial for diagnosing celiac disease by detecting antibodies against gliadin, a key protein in gluten. While gliadin antibodies can appear in people without celiac disease, making the test less specific, recent advancements have improved its accuracy. The test now focuses on deamidated gliadin peptides, which have a stronger reaction with antibodies in celiac patients, offering a more precise diagnosis compared to traditional gliadin antibody tests.
What patients is this test right for?This test is particularly useful for individuals showing symptoms of celiac disease or those with a family history of the condition.
Common Symptoms of Celiac Disease:• Stomach pain
• Bloating
• Diarrhea or constipation
• Anemia
• Weight loss
• Feeling tired all the time
What type of sample is required for this test?1 mL serum.
Test ResourcesFor more information on this test and its importance in diagnosing celiac disease, consult healthcare professionals or visit relevant medical websites.
Additional details
Gliadin (Deamidated) Antibody (IgG, IgA) - This test is crucial for diagnosing celiac disease by detecting antibodies against gliadin, a key protein in gluten. While gliadin antibodies can appear in people without celiac disease, making the test less specific, recent advancements have improved its accuracy. The test now focuses on deamidated gliadin peptides, which have a stronger reaction with antibodies in celiac patients, offering a more precise diagnosis compared to traditional gliadin antibody tests.
Highlighted health areas
- Allergies and sensitivities
Biomarkers and report focus
The exact analytes and report format can change. Confirm the current contents in the Fullscript order before payment.
- Gliadin (Deamidated) Antibody (IgA)
- Gliadin (Deamidated) Antibody (IgG)