Tree Allergen Mix 1 IgE, Serum
A blood test that measures IgE antibodies to a mixture of tree allergens, helping evaluate possible allergic sensitization.
["An elevated result may indicate an immune sensitivity to one or more tree allergens, but it must be interpreted alongside symptoms and exposure history."]
Key facts at a glance
- LOINC
- 24479-8
- Short code
- Tree Allerg Mix1 IgE RAST
- Synonyms
- Tree Allerg Mix1 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 allergen-specific IgE antibodies in your blood against a mixture of tree allergens. The exact allergens included may vary by laboratory, so the laboratory's allergen list is important when reviewing the results.
Why might I need this test?
Your clinician may order this test if you have sneezing, wheezing, skin symptoms, or other reactions that occur around trees or tree pollen. It can help identify whether your immune system has developed a sensitization to allergens in the tested tree mixture.
How is the test performed?
A blood sample is collected, and the serum is tested in the laboratory for IgE antibodies to the included tree allergens. This is commonly known as a RAST-style or specific IgE immunoassay.
How do I prepare for the test?
Fasting is usually not required. Tell your clinician about any allergy medicines, supplements, or recent allergen exposure, because these factors may influence interpretation; do not stop prescribed medication without medical 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.
A positive or elevated result indicates that IgE antibodies to one or more allergens in the tested tree mixture were detected, which is consistent with allergic sensitization. It does not by itself prove that the allergens cause your symptoms or predict the severity of a reaction. Results should be interpreted with your symptom history, exposure patterns, and other allergy evaluations.
Short name
Tree Allergen Mix 1 IgE
Frequently asked questions
Does a positive result mean I am allergic to trees?
Can this test identify the exact tree allergen causing my symptoms?
Should I stop taking allergy medicine before the 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