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Regional Allergen Immunoassay (IgE) Panel

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

This blood test measures your immune system’s response to common allergens, such as pollen, dust mites, pet dander, or certain foods, by detecting IgE antibodies.

Quick summary

["Helps identify potential allergies that may cause reactions like sneezing, itching, or skin rashes."]

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

Key facts at a glance

LOINC
82109-0
Short code
Region Allerg Mix4 IgE Qn
Synonyms
Region Allerg Mix4 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
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 This Test Measures

The test checks levels of IgE antibodies against a mix of regional allergens. IgE is a type of antibody that your immune system produces in response to allergens, triggering allergic reactions. This panel typically includes allergens relevant to your geographic region (e.g., seasonal grasses, molds, or common household allergens).

Why You Might Need This Test

Your doctor may recommend this test if you have symptoms like seasonal allergies, chronic sinusitis, asthma, or unexplained skin reactions that suggest an allergic trigger. It can help confirm or rule out allergies before starting allergy treatment or immunotherapy.

How the Test Works

A small blood sample is drawn and analyzed using an immunoassay method to detect IgE antibodies specific to each allergen in the panel. Results are reported as positive or negative for each allergen, indicating whether your immune system is sensitized to them.

Preparation and Sample Collection

No special preparation is needed. You may have a simple blood draw at your doctor’s office or a lab. The sample is processed and sent to a lab for analysis.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

IgE to Multiple Allergens

Frequently asked questions

What Does a Positive Result Mean?
A positive result for an allergen means your body has produced IgE antibodies against it, which may indicate a potential allergic reaction. This does not always mean you will have symptoms, but it can help identify triggers for further evaluation.
How Long Does It Take to Get Results?
Results are typically available within 1 to 3 business days, depending on lab processing times. Your doctor will discuss the findings with you during your follow-up visit.
Can I Avoid Allergens Based on Test Results?
While test results can suggest potential allergens, they are not definitive proof of a reaction. Some people may not react despite positive IgE levels. Always work with your healthcare provider to develop a personalized avoidance or management plan.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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 16, 2026. · Read our editorial policy