Dog Dander Epitope-Specific IgE, Qualitative (RAST)
A blood-based allergy test that looks for IgE antibodies directed against dog dander; a positive result suggests allergic sensitization.
["A positive result indicates that your immune system has made antibodies that may react to dog dander."]
Key facts at a glance
- LOINC
- 41272-6
- Short code
- Deprecated Dog Dander+Epith IgE RAST Ql
- Synonyms
- Deprecated Dog Dander+Epith 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 checks a blood sample for IgE antibodies directed against dog dander. These antibodies are part of the immune response that can cause allergy symptoms in some people.
Why might I need this test?
Your clinician may order this test if you develop sneezing, a runny nose, watery eyes, wheezing, or skin symptoms around dogs. It can help identify dog dander as a possible trigger.
How is the test performed?
A small blood sample is collected and analyzed in a laboratory for dog dander-specific IgE. RAST is a laboratory method used to detect allergen-specific antibodies; it does not require a skin-prick test.
How do I prepare for the test?
No special preparation or fasting is usually required. Tell your clinician about any allergy medicines, recent illness, or past severe allergic reactions, and follow any instructions given for other medicines.
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 shows that dog dander-specific IgE is present, which supports dog dander allergy sensitization. It does not predict exactly how severe your symptoms may be, and it should be interpreted alongside your exposure history and symptoms. A negative result makes dog dander sensitization less likely but does not completely exclude it.
Short name
Dog Dander-Specific IgE
Frequently asked questions
Does a positive result mean I am allergic to dogs?
Can I have this test while taking allergy medicine?
Do I need to be around a dog before the test?
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