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Food Allergen Immunoassay Panel (Screening)

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

This test measures the presence of IgE antibodies to common food allergens, helping identify potential allergic reactions to certain foods.

Quick summary

["A simple blood test to check for common food allergies that may cause reactions like hives, swelling, or digestive issues."]

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

Key facts at a glance

LOINC
15221-5
Short code
Food Allerg Mix F IgE Ql
Synonyms
Food Allerg Mix F IgE Ql
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 This Test Measures

The test detects IgE antibodies against a mix of common food allergens, including milk, eggs, peanuts, tree nuts, wheat, soy, fish, and shellfish. IgE antibodies are the body’s immune response to allergens, often linked to allergic reactions.

Why It’s Done

Your doctor may recommend this test if you’ve experienced symptoms like itching, swelling, difficulty breathing, or digestive issues after eating certain foods, or if you have a family history of food allergies.

How the Test Works

A small blood sample is taken to analyze IgE antibody levels against the listed allergens. The results help determine if your immune system is reacting to these foods.

What the Results Mean

Positive results indicate a possible allergic reaction to one or more foods, but they don’t confirm a diagnosis. Further testing or elimination of suspected foods may be needed to confirm allergies.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Food Allergen Screen

Frequently asked questions

What does a positive result mean?
A positive result suggests your immune system may be reacting to one or more of the tested foods, but it doesn’t confirm an allergy alone. Your doctor may recommend additional testing or an elimination diet to confirm symptoms.
Can I eat the foods listed while waiting for results?
Yes, you can continue your normal diet while waiting for results. Avoiding foods before testing isn’t necessary unless advised by your doctor.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times.
  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