Serum/Plasma Silver Birch Pollen Immunoglobulin E (IgE) Concentration (Quantitative)
This test measures the level of Immunoglobulin E (IgE), a type of antibody your body produces in response to allergens like pollen, including silver birch.
["Helps identify if you have an allergic reaction to silver birch pollen."]
Key facts at a glance
- LOINC
- 103018-8
- Short code
- Silver Birch (rBet v) 4 IgE RAST
- Synonyms
- Silver Birch (rBet v) 4 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
What Does This Test Measure?
IgE antibodies are part of your immune system’s response to allergens. When your body detects silver birch pollen (an allergen), it may produce higher levels of IgE. This test quantifies how much IgE is present in your serum or plasma, which can indicate an allergic sensitivity.
Why Might You Need This Test?
Your doctor may recommend this test if you suspect an allergy to silver birch pollen, experience symptoms like sneezing, itching, or respiratory issues during pollen season, or if you’ve had a previous allergic reaction to pollen.
What Does a High or Low Level Mean?
A higher IgE level to silver birch pollen suggests an allergic reaction risk. However, a single test result alone doesn’t confirm an allergy—it’s often used alongside other tests or clinical symptoms for diagnosis.
How Is the Test Performed?
A blood sample is taken from a vein in your arm. The sample is sent to a lab where it is analyzed using an immunoassay method to measure IgE levels.
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.
This test helps doctors assess whether you have an allergic reaction to silver birch pollen, which can guide treatment options like avoiding exposure, using antihistamines, or consulting an allergist for further evaluation. Elevated IgE levels may also be part of a broader allergy workup, including skin prick tests or challenge tests.
Short name
IgE to Silver Birch Pollen
Frequently asked questions
How long does it take to get results from this test?
Can I take anything special before this test?
Is this test covered by insurance?
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