Immunoglobulin A IgA Blood Test
Type
Blood Testing
Biomarkers
1
Duration
30 min
Results
7 days
Measure your IgA levels accurately with our Immunoglobulin A blood test to monitor immune function and safeguard your health.
Immunoglobulin A (IgA) is a crucial antibody that plays a vital role in the immune system, primarily functioning in the mucous membranes lining the gut and respiratory tract. It serves as the body's first line of defence against harmful pathogens like bacteria and viruses. The IgA Blood Test measures the levels of IgA antibodies in your blood, providing a snapshot of your immune system's health. This test is particularly useful for individuals experiencing recurrent infections, gastrointestinal issues, or symptoms of autoimmune disorders. Elevated or decreased levels of IgA can be indicative of underlying health conditions such as celiac disease, liver diseases, or certain types of blood disorders. By assessing the levels of IgA in your blood, this test offers a comprehensive overview of your immune system's current state.
Key Details
- Allergens Tested
- 20–200+ substances (varies by panel)
- Fasting Required
- No
- Sample Type
- Blood draw
- Turnaround
- 5–10 business days
- Common Use
- Allergy mapping, elimination diet guidance
Who Is This For?
People experiencing unexplained digestive issues, skin problems, or chronic fatigue that may be food-related. Anyone with known allergies who wants comprehensive mapping of their triggers. Parents investigating potential food sensitivities in children. People considering an elimination diet and wanting data to guide which foods to remove.
What's Included
Preparation Required
No fasting required. Continue eating your normal diet for at least 2–4 weeks before testing — avoiding suspected trigger foods can cause false negatives. Inform the clinic of any antihistamines or immunosuppressants you're taking, as these can affect results.
Biomarkers Tested
1A group of proteins in blood including antibodies (immunoglobulins), transport proteins, and enzymes. Elevated globulin can indicate chronic infection, inflammation, or blood cancers. Calculated by subtracting albumin from total protein.
Subscription plans and discounts (up to 20% off)
- Category
- Diagnostic
- Sample Type
- Blood draw
- Duration
- 30 min
- Results
- 7 days
OneDayTests
Quick access to same-day medical testing with fast results for better health decisions.

