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Food Allergen Mix 11 IgE, Serum/Plasma — Radioallergosorbent Test (RAST)

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

A blood test that measures IgE antibodies to a selected group of 11 food allergens. It can help identify possible food allergy when interpreted with your symptoms and history.

Quick summary

["This test screens for an immune response to selected food allergens but does not diagnose allergy by itself."]

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

Key facts at a glance

LOINC
82095-1
Short code
Food Allerg Mix11 IgE RAST
Synonyms
Food Allerg Mix11 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 blood test measures allergen-specific IgE antibodies to a group of 11 food allergens. The allergens included can vary by laboratory, so ask the testing laboratory for the specific panel contents.

Why might I need this test?

It may be ordered when you have symptoms such as hives, swelling, wheezing, vomiting, or abdominal discomfort after eating certain foods. Your clinician may also use it to evaluate possible food allergy before allergy testing or elimination-diet planning.

How is the test performed?

A blood sample is drawn and analyzed in a laboratory using an IgE immunoassay, also known as a RAST test. The report identifies which food allergens in the panel showed a measurable immune response.

How do I prepare for the test?

Fasting is generally not required. Antihistamines and some other medicines may affect the results, so tell your clinician about all medicines and supplements and follow their instructions before the test. Do not stop prescribed treatment on your own.

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 11 IgE

Frequently asked questions

Does a positive result mean I have a food allergy?
Not necessarily. It shows an immune response to a tested food, but your clinician must interpret it with your symptoms, medical history, and sometimes additional allergy testing.
Which foods are included in the mix?
The mix contains 11 food allergens, but the exact selections can vary by laboratory. Check the test report or contact the laboratory for the allergen list.
Should I stop taking antihistamines before the test?
Some antihistamines can affect IgE test results, but stopping prescribed medicine should be discussed with your clinician. Follow the preparation instructions provided by the laboratory or ordering clinician.
  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