Description
Why It’s Done:
This test may be ordered when a healthcare provider suspects a recent or acute Aspergillus infection, especially in people with:
• Weakened immune systems (e.g., cancer patients, transplant recipients, HIV/AIDS)
• Sudden onset of respiratory symptoms (fever, cough, shortness of breath)
• Risk factors for invasive aspergillosis
The test helps:
• Support a diagnosis of early or invasive aspergillosis
• Distinguish between recent and past exposure
• Monitor the immune response in high-risk patients
⚠️ Note: IgM levels may decline quickly as the infection progresses, so results should be interpreted with caution and in conjunction with other tests (e.g., IgG, galactomannan antigen, PCR, imaging).
Preparation:
• No special preparation is required for this test.
• A blood sample is collected via a standard venipuncture.
• Inform your doctor about:
o Any ongoing infections or immune-related conditions
o Any medications you are taking, particularly immunosuppressants
