IMMUNOGLOBULIN IGA

What this test checks

Measures IgA antibodies that defend your gut lining, airways, and other mucous surfaces. Low IgA can mean immune deficiency; high IgA can indicate chronic infection or certain immune diseases.

Why do people get this test?

Used in evaluating recurrent infections, suspected celiac disease, and chronic liver or kidney conditions.

When you should consider this test

• Frequent sinus, lung, or gut infections
• Suspected celiac disease
• Investigating immune disorders

How to prepare

No fasting needed.