Afumigatus6abserql

Published: August 9, 2026Updated: August 16, 2026

This blood test detects antibodies against Aspergillus fumigatus, a common fungus, to help diagnose aspergillosis and related fungal infections.

Quick summary

{"Detects IgG and IgM antibodies against Aspergillus fumigatus fungus in blood serum","Used to diagnose invasive aspergillosis and other Aspergillus-related infections","A simple blood draw is required; no special preparation is needed","Positive results indicate current or past exposure to the fungus","Often used for patients with weakened immune systems or respiratory symptoms"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC: 11592-3
Short code: A fumigatus6 Ab Ser Ql
Synonyms: A fumigatus6 Ab Ser Ql
Category: chemistry
Sample: serum
Container: Red-top tube (SST)
Units: N/A
Fasting: false
Population: adult
Sex: all
Age range: 18–65 years
CPT: 82784
Specimen volume: 5 mL
Stability: Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max: 500
Lipemia max: 1000
Icterus max: 500
TAT: 4–24 hours
Order: routine

What is this test?

The Aspergillus fumigatus antibody test is a blood test that looks for specific antibodies (IgG and IgM) that your immune system produces in response to infection by Aspergillus fumigatus, a common mold found in soil, decaying vegetation, and indoor environments. This test helps healthcare providers determine if you have an active or recent infection caused by this fungus, a condition known as aspergillosis.

Aspergillus fumigatus is one of the most common causes of fungal infections in humans, particularly in people with weakened immune systems, such as those undergoing chemotherapy, organ transplant recipients, or patients with long-term lung diseases like asthma or COPD. The test is performed on a serum sample, which is the clear liquid portion of your blood after it has been allowed to clot.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

The Aspergillus fumigatus antibody test is primarily used to diagnose aspergillosis, including invasive aspergillosis (a serious infection that spreads beyond the lungs), allergic bronchopulmonary aspergillosis (an allergic reaction to the fungus), and aspergilloma (a fungal ball in the lungs). A positive IgG result typically indicates past or current infection, while IgM antibodies usually appear in early infection. However, interpretation of results requires consideration of the patient's clinical symptoms, imaging findings, and other laboratory tests. This test is particularly important for immunocompromised patients who are at higher risk of developing severe fungal infections.

Frequently asked questions

Why do I need this test?

Your doctor may order this test if you have symptoms of a fungal infection, such as persistent cough, fever, chest pain, or difficulty breathing, especially if you have a weakened immune system or underlying lung disease. It helps confirm whether your symptoms are caused by Aspergillus fumigatus.

How is the test performed?

A healthcare professional will draw a blood sample from a vein in your arm. The blood is then sent to a laboratory where it is tested for the presence of IgG and IgM antibodies against Aspergillus fumigatus. You do not need to fast or make any special preparations before the test.

What do the results mean?

Results are typically reported as positive or negative. A positive result means antibodies were detected, suggesting you have or recently had an Aspergillus infection. A negative result means no antibodies were detected, but this does not completely rule out infection, especially in early stages or in severely immunocompromised patients who may not produce adequate antibodies.

Are there any risks?

The risks are minimal and include slight pain or bruising at the injection site, lightheadedness, and in rare cases, infection. These risks are the same as with any routine blood draw.

How long does it take to get results?

Results are usually available within a few days to a week, depending on the laboratory. Your healthcare provider will contact you with the results and discuss what they mean for your care.

Sources

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy