Antibody to *Aspergillus* (Serum) – Immunoassay
This test detects antibodies in your blood that may indicate exposure to the fungus *Aspergillus*, a common mold found in the environment.
["Helps identify possible fungal infection or allergic reaction to mold exposure."]
Key facts at a glance
- LOINC
- 24508-4
- Short code
- ASPNIDAB
- Synonyms
- A nidulans Ab Ser Ql ID
- Category
- chemistry
- Sample
- serum
- Container
- Red-top serum tube or serum separator tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- immune-diffusion
- CPT
- 86606
- Specimen volume
- 1-2 mL of serum
- Stability
- Stable for 7 days at 2-8°C; stable for longer periods at -20°C or below
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 48–168 hours
- Order
- routine
What Does This Test Measure?
The test measures the presence of antibodies produced by your immune system in response to exposure to *Aspergillus* fungi. These antibodies can suggest past or current infection, allergic reaction, or colonization (growth of the fungus in your body). The method used is an immunoassay, which detects specific proteins (antibodies) in your serum sample.
Why Might You Need This Test?
Your healthcare provider may order this test if you have symptoms like persistent cough, lung infections, or allergic reactions, or if you live in an area with high mold exposure. It may also be used to monitor people with weakened immune systems or those at higher risk for fungal infections.
When Might Results Be Abnormal?
Abnormal results could indicate an immune response to *Aspergillus*, such as allergic bronchopulmonary aspergillosis (ABPA), a fungal infection, or colonization. However, false positives or negatives can occur, so results should always be interpreted by a healthcare professional.
What Does It Feel Like to Get This Test?
You’ll likely have a simple blood draw from a vein in your arm. The process is quick and usually painless, though you may feel a slight pinch. You’ll rest for a few minutes afterward to ensure no bruising or bleeding occurs.
Reference range
Negative: No precipitin bands detected. Positive: Presence of one or more precipitin bands indicating antibodies against Aspergillus nidulansN/A
No fasting required. No special patient preparation needed for this serological test.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test helps diagnose or monitor conditions related to *Aspergillus* exposure, such as allergic reactions, infections, or immune-related complications. It’s particularly useful for patients with chronic lung diseases, HIV/AIDS, or other conditions that weaken immunity. Results guide treatment decisions, such as antifungal medications or allergy management.
Short name
Aspergillus Antibody (Serum)
Frequently asked questions
How long does it take to get my test results?
Can I eat or drink before this test?
What if my results are positive?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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