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Food Allergen Mix 23 IgE, Serum

Published: August 9, 2026Updated: August 17, 2026

A blood test that measures IgE antibodies to a group of food allergens, helping evaluate possible food allergy.

Quick summary

["Elevated allergen-specific IgE may suggest an immune response to one or more foods in the tested panel, but results must be interpreted with your symptoms and medical history."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
82062-1
Short code
Food Allerg Mix23 IgE RAST
Synonyms
Food Allerg Mix23 IgE RAST
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
10
Ref high
40
Critical range
— – 500 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
multidisk
CPT
84484
SNOMED
302774002
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 is this test?

This test measures food-specific IgE antibodies in a blood sample. IgE is an immune-system protein that can be produced in response to particular foods, such as peanuts, tree nuts, shellfish, or other common allergens included in the panel.

Why might I need this test?

A clinician may order this test when symptoms such as hives, swelling, vomiting, wheezing, or digestive discomfort occur after eating certain foods. It can help identify which foods are more likely to trigger an allergic response.

How is the test performed?

A blood sample is collected and analyzed in the laboratory for allergen-specific IgE. The laboratory reports the level of antibodies detected for each food in the panel.

How do I prepare for the test?

No special preparation is usually required for this blood test. Tell your clinician about your symptoms, suspected food reactions, medications, and any recent changes in your diet, because these details can affect interpretation.

Reference range

Adult: 10-40 U/LN/A

Specimen: serum

No special preparation required. Avoid fatty meals before the test if possible.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Food Allergen Mix 23 IgE

Frequently asked questions

Does a positive result mean I have a food allergy?
Not necessarily. It shows that IgE antibodies to the food were detected, but your clinician must determine whether the result matches your symptoms and other clinical findings.
Can I use this test to decide which foods to avoid?
Do not start avoiding foods based only on this test, especially without medical guidance. If you have had a severe reaction, discuss a food-allergy evaluation and an emergency action plan with your clinician.
How is this test different from a skin-prick test?
Both can identify food-specific IgE responses, but the skin-prick test measures a reaction in the skin while this test measures IgE in blood. The tests may not always produce identical results, so clinical history remains important.
  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 17, 2026. · Read our editorial policy