Test library
Aspergillus Niger Allergy Test
An Aspergillus niger allergy blood test measures IgE antibodies against black mold spores. It helps assess sensitization when nasal, eye, or respiratory symptoms appear around damp or moldy materials.
Order Aspergillus niger Allergy Test
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Aspergillus niger Allergy Test- Typical turnaround
- 1-3 business days
- Starting price
- From $49
- Results
- Confidential, online
Quick answer
The Aspergillus niger allergy test is a blood test that measures immunoglobulin E antibodies against black mold spores. It is ordered when someone has ongoing nasal, eye, or breathing symptoms that may be tied to damp indoor spaces or moldy materials. The result shows whether sensitization is present and is interpreted with a person's history.
What this test measures
Aspergillus niger is a common mold that grows on damp building materials, stored crops, and decaying plant matter. Its spores become airborne when contaminated surfaces or materials are disturbed, and sensitive people can react with sneezing, congestion, itchy eyes, or asthma-like symptoms. Exposure tends to be higher in water-damaged buildings and some agricultural settings.
The test measures allergen-specific IgE in serum using a quantitative immunoassay. A single blood draw is enough, and the laboratory reports the level of Aspergillus niger-specific IgE together with a reactivity class. Because many molds share overlapping allergens, results are often reviewed alongside other mold tests in the same panel.
A positive result indicates sensitization rather than a confirmed cause of symptoms. Whether someone reacts depends on exposure and individual sensitivity. Clinicians combine the finding with a symptom history, physical exam, and sometimes additional testing before discussing avoidance measures or further evaluation.
- Aspergillus niger-specific IgE antibodies
- Total serum IgE
- Quantitative allergen-specific IgE level
- IgE reactivity class for Aspergillus niger
- Cross-reactive mold and fungal allergens
- Related mold spore allergens in the panel
- Alternaria and Cladosporium comparison markers
Why people order this test
- Investigate persistent nasal or respiratory symptoms in damp settings
- Assess mold sensitization as part of a broader allergy workup
- Review symptoms that worsen in water-damaged buildings
- Compare reactivity across several mold species
- Support evaluation of occupational mold exposure
- Provide context before discussing environmental changes with a provider
How to prepare
No fasting is needed for this blood test. A sample is collected from a vein, usually at the arm. Follow any specific instructions from the laboratory, especially if the test is part of a larger mold panel.
Understanding your results
Results are generally available within one to three business days. The report shows the specific IgE level and a reactivity class for Aspergillus niger. An elevated value means sensitization is present, and a qualified healthcare provider can explain what it means for the individual.
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Frequently Asked Questions
What is Aspergillus niger?
It is a common mold species, often called black mold, that grows on damp surfaces and stored materials. Its spores can trigger allergic reactions in sensitive people.
How is the test performed?
A small blood sample is drawn from a vein. The serum is then analyzed for IgE antibodies that react to Aspergillus niger allergens.
Do I need to fast before this test?
No fasting is usually required. If the test is bundled with other panels that require fasting, the laboratory provides the instructions.
What does a positive result mean?
It shows the immune system has produced IgE antibodies against the mold. That indicates sensitization, not a confirmed cause of symptoms.
Can this test tell me whether my home has mold?
No. The test measures a person's immune response, not the environment. Inspecting and testing a building is a separate process.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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