Tree Allergens Mix 9 IgE, Serum
A blood test that measures IgE antibodies to a group of tree allergens can help identify possible tree-related allergy sensitization.
["Positive results suggest an immune sensitivity to one or more tree allergens but must be interpreted alongside your symptoms and exposure history."]
Key facts at a glance
- LOINC
- 82038-1
- Short code
- Tree Allerg Mix 9 IgE RAST
- Synonyms
- Tree Allerg Mix 9 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 to a mixture of tree allergens in your blood. IgE is the antibody class most often associated with immediate, or type 1, allergic reactions. The term RAST is an older name commonly used for this type of laboratory testing.
Why might I need this test?
You may need this test if you have symptoms such as sneezing, watery eyes, nasal congestion, wheezing, or hives after exposure to trees, logs, wood dust, or tree-related foods. Your clinician may use the results to guide allergy testing, treatment, or decisions about avoiding certain exposures.
How is the test performed?
A blood sample is collected and analyzed in a laboratory for allergen-specific IgE. The panel evaluates antibodies against a defined mixture of tree allergens; your laboratory report should list the individual allergens included and the results for each.
How do I prepare for the test?
No special fasting or dietary preparation is usually required. Tell your clinician about your allergy symptoms, recent exposures, medications, and any history of anaphylaxis. Do not stop prescribed medicines before testing unless your clinician instructs you to do so.
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.
◆Associated findings1
Short name
Tree Allergen IgE Panel
Frequently asked questions
Does a positive result mean I am allergic to trees?
What symptoms can tree-related allergy cause?
Can I use this result to decide what to avoid?
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