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Serum or Plasma Silver Birch Pollen Immunoglobulin E (IgE) Level

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

This test measures your body’s immune response to silver birch tree pollen, which may help identify allergies triggered by this common allergen.

Quick summary

["Assesses potential pollen allergy sensitivity with a blood test."]

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

Key facts at a glance

LOINC
103017-0
Short code
Silver Birch (rBet v) 2 IgE RAST
Synonyms
Silver Birch (rBet v) 2 IgE RAST
Category
chemistry
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
rast
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

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you experience symptoms like sneezing, itching, or a runny nose during seasons when silver birch pollen is prevalent, or if you’ve had reactions to pollen exposure in the past.

What to Expect Before the Test

A blood sample will be drawn from a vein in your arm. The sample is then sent to a lab for analysis to measure your IgE antibodies specific to silver birch pollen.

What the Results Mean

A positive result suggests a possible allergy, but it doesn’t confirm a diagnosis alone. Your doctor will consider symptoms, medical history, and other tests to make a full assessment.

Common Symptoms Linked to Silver Birch Pollen Allergy

Allergic reactions to silver birch pollen can cause symptoms like seasonal allergies (sneezing, itchy eyes, nasal congestion), skin rashes, or even more severe reactions in rare cases.

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.

Clinical Significance

Short name

IgE to Silver Birch Pollen

Frequently asked questions

How long does it take to get results from this test?
Results are typically available within 1 to 3 business days, depending on your lab’s processing time.
Can I take allergy medication before or after this test?
It’s best to avoid antihistamines or allergy medications for a few days before testing, as they may interfere with the accuracy of your IgE antibody levels. Always follow your doctor’s specific instructions.
Is this test covered by insurance?
Whether this test is covered by insurance depends on your specific plan and reason for testing. Check with your insurance provider or healthcare provider for details.
  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