House Dust Allergen Specific Immunoglobulin E (IgE) Quantification
This test measures the level of Immunoglobulin E (IgE) antibodies specific to allergens from common house dust mites, such as *Dermatophagoides pteronyssinus* and *Dermatophagoides farinae*. IgE is part of your immune system’s response to allergens and can indicate an allergic reaction.
["Assessing your sensitivity to common indoor allergens that may trigger asthma or allergic rhinitis."]
Key facts at a glance
- LOINC
- 7421-1
- Short code
- House Dust AP IgE Qn
- Synonyms
- House Dust AP IgE Qn
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- 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 suspect allergies to house dust mites, experience symptoms like sneezing, itchy eyes, or wheezing, or if you’ve been diagnosed with allergies or asthma. It helps determine whether your symptoms are linked to these specific allergens.
What to Expect Before the Test
No special preparation is needed. The test involves a simple blood draw, typically taken from your arm. The blood sample is then analyzed in a lab to measure your IgE levels specific to house dust mite allergens.
What the Results Mean
Results show your IgE levels against house dust mite allergens. Elevated levels may suggest an allergic reaction to these mites, but they are not definitive proof of an allergy. Other tests, like skin prick tests or allergy challenges, may be needed for a full diagnosis.
Common Symptoms Linked to House Dust Mite Allergies
Allergies to house dust mites often cause symptoms such as sneezing, runny or stuffy nose, itchy or watery eyes, itchy or watery ears, itchy or scratchy throat, coughing, wheezing, or asthma-like symptoms. These symptoms can occur at any time but are often worse at night or in the early morning.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
IgE to House Dust Mites
Frequently asked questions
What does a high or low IgE level to house dust mites mean?
Can this test be used to diagnose asthma?
How often should I get this test if I have allergies?
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 16, 2026. · Read our editorial policy