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IgE Antibody to Common Allergens (Screening)

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

This test measures levels of Immunoglobulin E (IgE), a type of antibody that your body produces in response to certain allergens like pollen, dust mites, or pet dander. It helps identify potential allergies that may cause symptoms like sneezing, itching, or skin reactions.

Quick summary

["Assesses potential allergic reactions to common environmental triggers."]

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

Key facts at a glance

LOINC
50622-0
Short code
Misc Allergen IgG
Synonyms
Misc Allergen IgG
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
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 part of your immune system’s defense mechanism. When your body encounters an allergen (a substance it deems harmful), it may produce IgE to help identify and respond to it. This test measures the concentration of IgE specific to common allergens, such as those found in foods, plants, or household items.

Why Might You Need This Test?

Doctors may recommend this screening test if you have symptoms like sneezing, itching, rash, or trouble breathing that suggest allergies. It can help determine if certain allergens are triggering your reactions and guide treatment plans.

How Is the Test Performed?

A small blood sample is taken from your arm. The sample is then sent to a lab for analysis using an immunoassay method, which detects the presence and levels of IgE antibodies specific to allergens.

What Are Possible Results?

Results may show elevated IgE levels for specific allergens, indicating a potential allergic reaction. However, elevated IgE alone does not confirm an allergy—it may require further testing (like skin prick tests or allergy challenges) for a definitive diagnosis.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

IgE Allergen Screen

Frequently asked questions

What does a positive result mean?
A positive result suggests that your body may produce IgE antibodies in response to certain allergens, which could mean you’re more likely to react to them. This doesn’t confirm an allergy without further testing, but it can help narrow down possible triggers for discussion with your doctor.
Can this test be used to diagnose allergies?
No, this test alone cannot diagnose allergies. It’s typically used as a screening tool. For a full allergy diagnosis, your doctor may recommend additional tests like skin prick tests or allergy challenges.
How soon will I get results?
Results are usually available within 1–3 business days, depending on your lab’s processing time. Your healthcare provider will discuss the results with you and next steps.
  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