Food Allergen Mix 12 IgE, Serum — Radioallergosorbent Test (RAST)
A blood test that measures IgE antibodies to a panel of 12 food allergens to help evaluate possible food allergy.
["Detected food-specific IgE may indicate an immune sensitization, but it must be interpreted alongside symptoms and medical history."]
Key facts at a glance
- LOINC
- 82053-0
- Short code
- Food Allerg Mix12 IgE RAST
- Synonyms
- Food Allerg Mix12 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 IgE antibodies your immune system may make in response to a group of 12 foods. The exact foods included depend on the laboratory or testing panel used.
Why might I need this test?
It may be ordered to help identify possible food triggers when you have symptoms such as hives, swelling, abdominal pain, vomiting, wheezing, or other allergic reactions after eating.
How is the test performed?
A blood sample is collected, and the laboratory measures IgE antibodies against the foods included in the panel. Results identify which food allergens your body has been exposed to immunologically.
How do I prepare for the test?
Fasting is usually not required. Tell your healthcare professional about your symptoms, suspected food reactions, allergic conditions, and any medicines or allergy treatments you are using, but do not stop medications without advice.
Reference range
Adult: 10-40 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
An elevated or positive result means that IgE antibodies to one or more tested foods were detected, indicating possible sensitization. It does not by itself prove that eating the food will cause an allergic reaction. Results should be reviewed with your symptoms, medical history, and sometimes other allergy testing by your clinician.
Short name
Food Allergen Mix 12 IgE Panel
Frequently asked questions
Does a positive result mean I have a food allergy?
Which 12 foods are included in the panel?
How is this different from a skin-prick test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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