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Tree Allergen Mix 4, IgE, Serum

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

Measures IgE antibodies to a panel of tree allergens in your blood, helping assess whether symptoms may be caused by a tree-related allergy.

Quick summary

["Elevated IgE levels suggest an allergic response to one or more tree allergens in the panel."]

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

Key facts at a glance

LOINC
24492-1
Short code
Tree Allerg Mix4 IgE RAST
Synonyms
Tree Allerg Mix4 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 tree allergens. IgE is an immune-system protein that can develop in response to an allergen.

Why might I need this test?

Your clinician may order this test if you have symptoms such as sneezing, watery eyes, nasal congestion, wheezing, or hives that could be related to exposure to trees or tree pollen.

How is the test performed?

A blood sample is collected and analyzed for IgE antibodies against the tree allergens included in the testing panel. The panel may include related tree or pollen allergens, depending on the laboratory.

How do I prepare for the test?

No special preparation is usually needed. Tell your clinician about any medicines, recent allergic reactions, and other allergic conditions, as these may affect interpretation.

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.

A positive result indicates that IgE antibodies to one or more tree allergens in the panel are present, suggesting a possible tree-related allergy. The result should be interpreted with your symptoms, exposure history, and other allergy tests because sensitization does not always cause clinical allergy.

Short name

Tree Allergen Mix 4 IgE

Frequently asked questions

Does a positive result mean I am allergic to trees?
It indicates an immune response to one or more allergens in the panel, but it does not by itself confirm that the allergens cause your symptoms. Your clinician can interpret the result in context.
Can this test identify the exact tree causing my symptoms?
The panel shows which tested allergens produce an IgE response, but the result may not identify the only tree responsible for your symptoms. Additional testing may sometimes be helpful.
Should I stop allergy medicines before the test?
Do not stop prescribed medicines unless your clinician instructs you to do so. Some allergy treatments can affect test interpretation, so discuss any medication use with the 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