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IgE Antibody Screening to Common Food Allergens (Serum)

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

This test measures levels of Immunoglobulin E (IgE) antibodies in your blood to certain common foods. IgE is a type of antibody that may indicate an allergic reaction to those foods.

Quick summary

["IgE levels help identify potential food allergies by detecting your immune system’s response to specific triggers."]

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

Key facts at a glance

LOINC
73711-4
Short code
Food Allerg Mix18 IgE Qn
Synonyms
Food Allerg Mix18 IgE Qn
Category
glucose
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 against a mix of 18 common food allergens, including proteins like peanuts, tree nuts, dairy, eggs, wheat, soy, fish, and shellfish. IgE antibodies are produced by your immune system in response to allergens, signaling a potential allergic reaction.

Why Might You Need This Test?

Your healthcare provider may recommend this test if you have symptoms like hives, swelling, difficulty breathing, or digestive issues after eating certain foods, or if you suspect a food allergy based on family history or medical history.

How Is the Test Performed?

A blood sample is drawn from a vein in your arm. The sample is sent to a lab where it is analyzed using an immunoassay method to measure IgE levels specific to the listed food allergens.

What Are the Results Typically Used For?

Results help determine if you have an allergic reaction to any of the tested foods. High IgE levels to specific allergens may suggest a need for further evaluation or dietary adjustments, but they do not definitively diagnose an allergy alone.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

IgE Food Allergy Screen

Frequently asked questions

How long does it take to get my results back?
Results are usually available within 1 to 3 business days, depending on your lab’s processing schedule. Follow-up with your healthcare provider to discuss the meaning of your results.
Can I eat certain foods before the test?
No, avoid introducing new foods or foods you suspect may trigger allergies before testing. Follow your healthcare provider’s instructions for fasting or dietary restrictions if applicable.
Are there any risks or side effects from this blood draw?
The most common side effect is mild bruising or soreness at the injection site. Rarely, you may experience a slight reaction like swelling or redness. If you experience severe pain or bleeding, contact your healthcare provider immediately.
  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