• No fasting is required for this test. You may eat and drink normally unless instructed otherwise by your doctor.
• Inform your healthcare provider and laboratory team about any antifungal medications, immunosuppressive therapy, or long-term steroid use.
• Share details of any chronic lung conditions, such as asthma, bronchiectasis, or tuberculosis history, as these are important for interpretation.
• Avoid heavy physical exertion immediately before sample collection.
• Carry your doctor’s prescription and a valid ID proof at the time of testing.
• If repeat testing is advised, try to obtain the sample under similar conditions to maintain consistency of results.

The Aspergillus IgG Antibody test measures the level of IgG antibodies directed against Aspergillus fungi in the blood. Elevated IgG levels indicate prior or ongoing exposure and immune response to Aspergillus species. This test is particularly helpful in diagnosing chronic pulmonary aspergillosis (CPA) and related conditions.

Doctors commonly recommend this test to:

• Evaluate chronic cough, breathlessness, or unexplained lung symptoms
• Investigate persistent lung cavities or nodules seen on imaging
• Diagnose chronic or subacute aspergillosis
• Monitor response to antifungal treatment
• Differentiate fungal lung disease from other chronic respiratory conditions

The test involves collecting a small blood sample from a vein, usually from the arm. The procedure is quick, safe, and minimally uncomfortable. Results are interpreted alongside clinical symptoms, radiological findings, and other laboratory tests such as fungal cultures or imaging studies.

It is important to note that a positive Aspergillus IgG result alone does not confirm active infection. Clinical correlation is essential, as antibody levels may remain elevated even after previous exposure or treatment. Serial testing may be advised to assess disease activity or treatment response.