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Regional Allergen Immunoassay (IgE) Profile

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

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

Quick summary

["Helps identify potential allergens triggering your symptoms or reactions."]

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

Key facts at a glance

LOINC
82107-4
Short code
Region Allerg Mix3 IgE Qn
Synonyms
Region Allerg Mix3 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

IgE antibodies are part of your immune system’s defense against allergens. This test checks for specific IgE levels against a mix of regional allergens, including but not limited to: grass pollen, tree pollen, mold spores, cat/dog dander, dust mites, and common food allergens like peanuts, milk, or eggs. The results help pinpoint which allergens may be causing your allergic reactions.

Why You Might Need This Test

Your doctor may recommend this test if you experience symptoms like sneezing, itching, rash, or difficulty breathing that suggest allergies. It’s also useful for diagnosing allergies in children or adults who haven’t responded to other treatments.

Sample Collection and Preparation

A small blood sample is drawn from your arm, usually in a clinic or lab setting. The blood is processed to separate the serum, where IgE antibodies are measured. This test does not require fasting or special preparation beyond standard blood draw procedures.

Test Results and Interpretation

Results are reported as positive or negative for each allergen tested. A positive result means your body has produced IgE antibodies against that specific allergen, which may indicate an allergic reaction. Interpretation is done by your healthcare provider based on your symptoms and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

IgE testing is critical for diagnosing allergic conditions like hay fever, asthma, or food allergies. Elevated IgE levels to specific allergens can guide treatment plans, such as allergy immunotherapy (allergy shots) or avoiding known triggers. It’s important to discuss results with your doctor to understand their relevance to your health.

Short name

IgE to Multiple Allergens

Frequently asked questions

How long does it take to get my test results?
Results are typically available within 1 to 2 weeks after your sample is sent to the lab. However, this can vary depending on the lab and your healthcare provider’s workflow. Your doctor will contact you once results are ready.
Can I avoid allergens based on these test results alone?
While positive IgE results suggest an allergic reaction to certain allergens, they don’t confirm a diagnosis without clinical correlation. Your doctor will consider your symptoms, medical history, and sometimes additional tests to create a personalized avoidance or treatment plan.
What if my test results are negative but I still have allergy symptoms?
Negative IgE results mean your body did not produce detectable antibodies to the tested allergens. However, other factors—like environmental triggers, non-allergic conditions, or delayed reactions—could still cause your symptoms. Your doctor may recommend further testing or other approaches to manage your symptoms.
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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