Regional Allergen Immunoassay (Serum/Plasma)
This test measures the presence of Immunoglobulin E (IgE) antibodies against specific allergens in your blood. IgE is a type of antibody that your immune system produces in response to certain allergens, such as pollen, dust mites, or pet dander.
["Helps identify potential allergens triggering your symptoms for targeted allergy management."]
Key facts at a glance
- LOINC
- 15232-2
- Short code
- Region Allerg Mix A IgE Ql
- Synonyms
- Region Allerg Mix A IgE Ql
- Category
- coagulation
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- multidisk
- 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?
The test detects IgE antibodies specific to common regional allergens, such as grass pollen, tree pollen, mold spores, or animal dander. These antibodies are part of your immune response and can indicate an allergic reaction when exposed to these substances.
Why Might You Need This Test?
Your healthcare provider may recommend this test if you experience symptoms like sneezing, itching, rash, or difficulty breathing after exposure to certain environmental triggers. It helps determine whether allergies are causing your symptoms and guides treatment decisions.
How Is the Test Performed?
A blood sample is drawn from a vein in your arm. The sample is then processed and analyzed to detect IgE antibodies against specific allergens. The results are compared to a reference range to identify potential allergens.
What Do the Results Mean?
Positive results indicate the presence of IgE antibodies against certain allergens. This does not definitively diagnose an allergy but suggests a possible reaction. Further testing, such as skin prick tests, may be needed for confirmation.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: This test is primarily used to screen for potential allergens that may trigger allergic reactions. Elevated IgE levels against specific allergens can help guide allergy avoidance strategies, immunotherapy planning, or referral to an allergist for more detailed evaluation.
Short name
Allergen IgE Screening
Frequently asked questions
What does a positive result mean?
Can this test be done at home?
How soon will I get my results?
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 16, 2026. · Read our editorial policy