IGA (IMMUNOGLOBULIN A)

Immunoglobulin A (IgA) testing measures the concentration of IgA antibodies in the blood, the primary antibody class involved in mucosal immunity of the respiratory, gastrointestinal and genitourinary tracts. The assay quantifies serum IgA (and, when requested, IgA subclasses) to assess the body’s first-line defense against pathogens at mucosal surfaces; the test is performed on a venous blood sample collected by a certified phlebotomist at home in Dubai and analysed in accredited laboratories for accurate, fast results.

This test is important for identifying selective IgA deficiency (a common primary immunodeficiency), detecting abnormal IgA elevation associated with chronic inflammation or liver disease, and supporting investigations into recurrent sinopulmonary or gastrointestinal infections, persistent diarrhoea, or suspected immune disorders. Results help physicians guide further diagnostic steps (for example, measuring other immunoglobulins or referring to an immunologist) and inform treatment or monitoring plans.

Preparation is minimal—no fasting is usually required—and results are interpreted in the clinical context; normal ranges vary by age and laboratory reporting units (g/L or mg/dL). Note that recent immunoglobulin therapy, blood transfusions, or certain medications can affect IgA levels, so disclose these to the phlebotomist or ordering clinician. Always review results with your healthcare provider to determine next steps or additional testing.

• Serum Immunoglobulin A (IgA) — Total
• IgA1 subclass
• IgA2 subclass

• Recurrent sinopulmonary infections (bronchitis, sinusitis, otitis)
• Chronic or recurrent gastrointestinal infections or diarrhoea
• Suspected selective IgA deficiency or primary immunodeficiency
• Evaluation of unexplained allergic or atopic symptoms
• Assessment prior to immunoglobulin therapy or organ transplantation
• Monitoring suspected autoimmune conditions (e.g., celiac disease) with clinical correlation

• Assessment of mucosal immune status to identify IgA deficiency
• Helps diagnose causes of recurrent respiratory or GI infections
• Convenient at‑home blood collection by certified Dubai phlebotomists
• Fast, reliable results from accredited laboratories for timely clinical decisions
• Actionable data to guide further immunological testing or specialist referral

• At‑home venous blood sample collection by a certified phlebotomist in Dubai
• No fasting usually required unless ordered with other tests
• Inform the phlebotomist/clinician of recent IVIG, blood transfusions, or immunosuppressive medications
• Suitable for adults and children—notify if pediatric collection is needed