Soybean Dust Immunoassay (IgE Antibody) – Serum
This test measures the level of Immunoglobulin E (IgE) antibodies in your blood that react to soybean dust, a common allergen. IgE is part of your immune system’s response to allergens.
["Assesses your immune reaction to soybean dust, helping identify potential allergies."]
Key facts at a glance
- LOINC
- 102691-3
- Short code
- Soybean dust IgE RAST
- Synonyms
- Soybean dust IgE RAST
- Category
- glucose
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 10
- Ref high
- 40
- Critical range
- — – 500 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- rast
- CPT
- 84484
- SNOMED
- 302774002
- 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
What Does This Test Measure?
IgE antibodies are a type of protein produced by your immune system when it encounters an allergen. This test specifically looks for IgE that targets soybean dust, which can be found in processed foods, cooking oils, and certain agricultural environments. Elevated levels may suggest an allergic reaction to soybean dust.
Why Might You Need This Test?
Your healthcare provider may recommend this test if you suspect an allergy to soybean dust, especially if you experience symptoms like itching, swelling, difficulty breathing, or digestive issues after exposure. It can also help confirm a diagnosis of soybean dust allergy before planning treatment or avoiding exposure.
How Is the Test Performed?
A blood sample is drawn from a vein in your arm. The sample is then sent to a lab for analysis using an immunoassay method, which detects the presence of IgE antibodies specific to soybean dust. This process typically takes a few days to complete.
What Are Possible Results?
Results are interpreted by your healthcare provider based on your medical history and symptoms. Higher IgE levels may indicate an allergic reaction, but they alone do not confirm an allergy. Other tests or clinical evaluation may be needed for a full diagnosis.
Reference range
Adult: 10-40 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: Understanding Your Results
Short name
IgE to Soybean Dust
Frequently asked questions
How long does it take to get the results of this test?
Can I avoid soybean dust to prevent allergic reactions?
What should I do if I suspect an allergy to soybean dust?
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 17, 2026. · Read our editorial policy