Description
Why It’s Done:
This test is ordered to:
• Help diagnose celiac disease, particularly in patients with low IgA levels
• Monitor adherence and response to a gluten-free diet in diagnosed patients
• Evaluate patients with symptoms such as chronic diarrhea, weight loss, anemia, or unexplained nutrient deficiencies
• Screen individuals at risk of celiac disease when IgA-based tests cannot be used
Preparation:
• No special preparation is required.
• Blood is drawn via venipuncture from a vein in the arm.
• Continue eating a normal gluten-containing diet before the test; stopping gluten before testing may result in false-negative results.
• Inform your healthcare provider about any medications or supplements you are taking.
