Food Allergen Mix 30 IgE, Serum
A blood test that measures IgE antibodies to a panel of 30 foods to help evaluate possible food allergy.
["This test screens for allergic sensitization to 30 foods, but results must be interpreted with your symptoms and medical history."]
Key facts at a glance
- LOINC
- 82548-9
- Short code
- Food Allerg Mix 30A IgE RAST
- Synonyms
- Food Allerg Mix 30A 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 panel of 30 foods. It is used to help identify foods that may trigger an immediate allergic reaction.
Why might I need this test?
You may need this test if you have symptoms such as hives, swelling, vomiting, wheezing, or other reactions after eating certain foods. Your clinician will select the panel based on your history and suspected exposures.
How is the test performed?
A blood sample is drawn from a vein and analyzed for IgE antibodies to the foods included in the panel. Results are usually reported for each food allergen tested.
How do I prepare for the test?
Tell your clinician about any medicines you take, especially antihistamines, because some can affect the results. Do not stop prescribed medicines without medical advice. Follow your clinician's instructions about avoiding suspected allergens before testing.
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.
Elevated allergen-specific IgE may indicate immune sensitization to one or more foods in the panel. This can support a food allergy diagnosis when it matches your symptoms and exposure history, but sensitization alone does not always mean a clinically important allergy. A negative result makes allergy less likely for the tested foods but does not completely exclude it.
Short name
Food Allergen IgE Panel
Frequently asked questions
Does a positive result mean I am allergic to that food?
Can this test determine the severity of a food allergy?
What if the test is negative but I still have food reactions?
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