Silver Birch-Specific IgE Antibody, Qualitative
A qualitative blood test that detects IgE antibodies against silver birch pollen, helping evaluate whether birch pollen may trigger an allergic reaction.
["A positive result suggests sensitization to silver birch pollen but must be interpreted alongside symptoms and exposure history."]
Key facts at a glance
- LOINC
- 15579-6
- Short code
- Deprecated Silver Birch IgE RAST Ql
- Synonyms
- Deprecated Silver Birch IgE RAST Ql
- 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
- 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 looks for allergen-specific IgE antibodies to silver birch pollen in a blood sample. IgE is an immune-system protein that can react with a particular allergen.
Why might I need this test?
It may be used to evaluate suspected birch pollen allergy, especially when symptoms occur during the birch pollen season. Your clinician may order it to help distinguish pollen-related allergy from other causes of similar symptoms.
How is the test performed?
A laboratory analyzes your blood for antibodies directed against silver birch pollen. The result is reported as positive or negative rather than as a concentration.
How do I prepare for the test?
No special preparation is usually required for this blood test. Follow any instructions from your healthcare professional or the laboratory before the sample is collected.
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 result indicates that the immune system has produced IgE antibodies directed against silver birch pollen, suggesting sensitization. This does not by itself confirm a clinical allergy; results should be interpreted with exposure history, symptoms, and other allergy evaluations. A negative result may make birch pollen less likely to explain the symptoms.
Short name
Silver birch IgE
Frequently asked questions
Does a positive result mean I am allergic to silver birch?
What symptoms can be related to birch pollen allergy?
Can skin-prick testing confirm the result?
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