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Aclavatusabserql

Published: August 9, 2026Updated: August 10, 2026

This blood test checks for antibodies against Aspergillus clavatus, a type of mold that can cause fungal infections.

Quick summary

{"Detects immune response to Aspergillus clavatus fungus","Helps diagnose allergic or invasive fungal infections","Sample is collected from blood (serum)","Results indicate past or current exposure to the fungus","Often used for patients with respiratory symptoms or weakened immune systems"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 10, 2026Editorial policy

Key facts at a glance

LOINC
31228-0
Short code
ASP CLAV AB
Synonyms
A clavatus Ab Ser Ql
Category
chemistry
Sample
serum
Container
Serum Separator Tube (SST) or Plain Red Top Tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
0–120 years
Method
Enzyme Immunoassay (EIA) or Immunofluorescence Assay (IFA)
CPT
86635
SNOMED
122442006
Specimen volume
5-10 mL of whole blood (approximately 1-2 mL serum)
Stability
Room temperature: 24-48 hours; Refrigerated (2-8°C): 5-7 days; Frozen (-20°C or below): 30 days. Avoid repeated freeze-thaw cycles.
Hemolysis max
50
Lipemia max
100
Icterus max
20
TAT
48–168 hours
Order
routine

What is this test?

The Aspergillus clavatus antibody test is a blood test that looks for specific antibodies (immune proteins) your body produces in response to Aspergillus clavatus, a common mold found in soil, decaying vegetation, and grain. This test determines whether your immune system has been exposed to this particular fungus.

How is the test performed?

A healthcare professional will draw a small blood sample from a vein in your arm. This sample is then sent to a laboratory where it is analyzed to detect the presence of antibodies against Aspergillus clavatus. The test does not require any special preparation like fasting.

What do the results mean?

A positive result means antibodies were detected, indicating your body has been exposed to Aspergillus clavatus. This could mean: you have an active infection, you had a past infection, or you have an allergic reaction to the fungus (such as allergic bronchopulmonary aspergillosis). A negative result suggests no current or past exposure to this specific fungus, though it does not rule out infection by other Aspergillus species.

Why is this test important?

Aspergillus clavatus can cause various conditions, from mild allergic reactions to serious invasive infections, especially in people with weakened immune systems, asthma, or cystic fibrosis. Early detection helps doctors diagnose and treat fungal infections promptly, preventing complications.

Reference range

Negative: No Aspergillus clavatus-specific antibodies detected. Positive results indicate exposure to Aspergillus clavatus.N/A

Specimen: serum

No special preparation required. Standard venipuncture procedure. Inform the laboratory of any immunosuppressive therapy or recent antifungal treatment.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Do I need to fast before this test?
No, fasting is not required for this blood test. You can eat and drink normally before the sample is collected.
Is the test painful?
You may feel a brief sting or pinch when the needle is inserted to draw blood, but the discomfort is minimal and usually lasts only a few seconds.
How long does it take to get results?
Results are typically available within a few days to a week, depending on the laboratory's processing time.
What does a positive result mean for my health?
A positive result indicates exposure to Aspergillus clavatus. Your doctor will evaluate your symptoms and may order additional tests (such as chest X-rays or CT scans) to determine if treatment is needed.
Can this test detect active infection?
This test detects antibodies, which indicate immune response to the fungus. It can suggest current or past exposure. For confirmed active infection, doctors may also use culture tests or antigen tests.
Who should get this test?
This test is typically ordered for patients with respiratory symptoms (cough, wheezing, shortness of breath), fever, or those with weakened immune systems who are at risk for fungal infections. It may also be used for people with asthma or cystic fibrosis experiencing worsening symptoms.
  1. 1
    Mayo Clinic - AspergillosisSource
  2. 2
    CDC - AspergillosisSource
  3. 3
    Lab Tests Online - Aspergillus AntibodySource

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 10, 2026. · Read our editorial policy