Understanding Your Laboratory Test: A Plain-Language Guide to What It Is and Why It Matters for Your Health
A blood test that detects antibodies against Aspergillus amstelodami, a type of mold, to help diagnose fungal infections or allergic reactions.
{"This test checks for antibodies against Aspergillus mold in your blood","It helps diagnose infections like allergic bronchopulmonary aspergillosis (ABPA)","A positive result means you have been exposed to this specific fungus","The test requires a simple blood draw","Results are reported as positive, negative, or with antibody levels"}
Key facts at a glance
- LOINC
- 16414-5
- Short code
- ASPAB
- Synonyms
- A amstelodami Ab Qn
- Category
- chemistry
- Sample
- serum
- Container
- Serum separator tube (SST) or plain red top tube
- Units
- N/A
- Ref low
- 20
- Ref high
- 40
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 0–120 years
- Method
- Enzyme-linked immunosorbent assay (ELISA) or Immunodiffusion
- CPT
- 86635
- SNOMED
- 122441009
- Specimen volume
- 1.0-2.0 mL of serum
- Stability
- Room temperature: 24 hours; Refrigerated (2-8°C): 7 days; Frozen (-20°C or below): 30 days
- Hemolysis max
- 50
- Lipemia max
- 300
- Icterus max
- 20
- TAT
- 48–168 hours
- Order
- routine
What is this test, and what is it designed to measure or detect in my body?
The Aspergillus amstelodami antibody test is a blood test that looks for specific antibodies (IgG) your body produces in response to Aspergillus amstelodami, a common type of mold found in the environment. This fungus is often present in soil, decaying vegetation, and indoor environments with moisture.
Why might my healthcare provider recommend this test for me, and what symptoms or conditions can it help evaluate?
Your doctor may order this test if you have symptoms of a fungal infection or allergic reaction to Aspergillus mold, such as persistent cough, wheezing, fever, or breathing difficulties. It is particularly useful in diagnosing conditions like allergic bronchopulmonary aspergillosis (ABPA), aspergilloma (fungus ball), or invasive aspergillosis, especially in people with asthma, cystic fibrosis, or weakened immune systems.
How is this test performed step by step, and is there anything special I need to do to prepare before the appointment?
A healthcare professional will draw a small blood sample from a vein in your arm. The sample is then sent to a laboratory where it is tested for the presence of IgG antibodies against Aspergillus amstelodami. No special preparation, such as fasting, is typically required.
What do my test results mean for my overall health, and how will my doctor explain the findings and next steps to me?
Results are typically reported as positive (antibodies detected) or negative (no antibodies detected). A positive result indicates that you have been exposed to Aspergillus amstelodami and your immune system has produced antibodies. Your doctor will interpret these results along with your symptoms, medical history, and other test results to make a diagnosis.
Reference range
Negative: < 1:2 titer or < 20 Units/mL; Equivocal: 1:2 to 1:4 titer or 20-40 Units/mL; Positive: ≥ 1:4 titer or ≥ 40 Units/mLN/A
No special preparation required. This test does not require fasting. Inform the laboratory of any recent antifungal therapy or immunosuppressed status.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is primarily used to diagnose and monitor allergic bronchopulmonary aspergillosis (ABPA), a hypersensitivity reaction to Aspergillus species that commonly affects patients with asthma or cystic fibrosis. It may also help detect other forms of aspergillosis, including aspergilloma (a fungal ball in the lungs) and invasive aspergillosis (a serious infection that can spread to other organs, typically in immunocompromised patients). The presence of IgG antibodies indicates a past or current exposure to the mold, while rising antibody levels over time may suggest an active infection.
Frequently asked questions
Is there any preparation needed before the test?
Does a positive result mean I have an active infection?
Can this test detect all types of Aspergillus infections?
Is the test safe?
How long does it take to get results?
Sources
- 1
- 2
- 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 14, 2026. · Read our editorial policy