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Complete Blood Count (CBC): What You Need to Know About This Common Blood Test

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

A blood test that measures IgE antibodies against Aspergillus flavus, a common mold, to help diagnose allergic reactions or infections.

Quick summary

{"Measures IgE antibodies specific to Aspergillus flavus mold","Helps diagnose allergic bronchopulmonary aspergillosis (ABPA) and mold allergies","Simple blood test requiring no special preparation","Results help doctors determine appropriate treatment"}

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

Key facts at a glance

LOINC
6024-4
Short code
A flavus IgE Qn
Synonyms
A flavus IgE Qn
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

A complete blood count, or CBC, is a common blood test that measures the different cells in your blood, including red blood cells, white blood cells, and platelets. It gives your doctor a broad picture of your overall health and can help detect a wide range of conditions.

The Aspergillus flavus IgE Antibody test is a blood test that detects and measures immunoglobulin E (IgE) antibodies specific to Aspergillus flavus, a type of mold commonly found in soil, decaying plants, and grains. When your immune system detects this mold, it may produce IgE antibodies if you are allergic or sensitized to it.

Your doctor may order a CBC as part of a routine checkup, or to help diagnose symptoms such as fatigue, weakness, fever, bruising, or unexplained bleeding. It is also used to monitor ongoing conditions like anemia or infection and to track how well treatments are working.

Your doctor may order this test if you have symptoms of an allergic reaction to mold, such as wheezing, shortness of breath, cough, or sinus problems. It is particularly useful for diagnosing allergic bronchopulmonary aspergillosis (ABPA), a condition where mold causes allergic inflammation in the lungs, often seen in people with asthma or cystic fibrosis.

A health care professional will draw a small sample of blood, usually from a vein in your arm, using a thin needle. The sample is sent to a laboratory for analysis. The blood draw itself takes only a few minutes, and you can typically return to your normal activities right away.

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 and level of IgE antibodies specific to Aspergillus flavus. No special preparation, such as fasting, is typically required before this test.

Your results show the levels of each type of blood cell compared with standard reference ranges. Values that are higher or lower than normal may suggest an underlying condition, but your doctor will interpret them together with your symptoms, medical history, and other test results before recommending next steps.

Results are reported as a concentration of IgE antibodies in your blood. Higher levels indicate sensitization or allergy to Aspergillus flavus. Your doctor will interpret these results along with your symptoms, medical history, and other test results to make a diagnosis and create a treatment plan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

The Aspergillus flavus IgE test is primarily used to diagnose allergic bronchopulmonary aspergillosis (ABPA), a condition that affects people with asthma and cystic fibrosis. It also helps identify mold allergies that may be causing respiratory symptoms such as chronic cough, wheezing, or sinus congestion. Elevated IgE levels to Aspergillus flavus, combined with other clinical findings, can confirm the diagnosis and guide treatment with antifungal medications or corticosteroids.

Frequently asked questions

Who should have this test?
This test is recommended for individuals with asthma, cystic fibrosis, or other lung conditions who experience worsening symptoms that may be related to mold allergy. It is also useful for patients with recurrent sinus infections or allergic rhinitis where mold sensitivity is suspected.
Do I need to fast before this test?
No special preparation is needed. You can eat and drink normally before the test. However, always follow any specific instructions provided by your healthcare provider.
How long does it take to get results?
Results are typically available within a few days to a week, depending on the laboratory. Your healthcare provider will contact you with the results or discuss them at your follow-up appointment.
What do high IgE levels mean?
Elevated IgE levels to Aspergillus flavus suggest that your immune system has produced antibodies in response to mold exposure, indicating sensitization or allergy. This finding, combined with your symptoms, helps confirm a diagnosis of allergic bronchopulmonary aspergillosis or mold allergy.
Is this test dangerous?
The test involves a routine blood draw, which carries minimal risks such as slight bruising, bleeding, or dizziness. These risks are generally minor and resolve quickly.
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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