Skip to content

Dermatophagoides pteronyssinus-Specific IgE, Serum — Qualitative (Deprecated Test Name)

Published: August 9, 2026Updated: August 16, 2026

A qualitative blood test for IgE antibodies to Dermatophagoides pteronyssinus, a common house dust mite. It can help assess allergic sensitization.

Quick summary

["A positive result indicates an immune reaction to house dust mite allergens."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
15682-8
Short code
Deprecated D pteronyss IgE RAST Ql
Synonyms
Deprecated D pteronyss IgE RAST Ql
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
10
Ref high
40
Critical range
— – 5 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 blood test looks for IgE antibodies directed against Dermatophagoides pteronyssinus, a species of house dust mite. These antibodies are part of an allergic response and can be detected in serum.

Why might I need this test?

This test may be used to evaluate suspected dust mite allergy, particularly in people with sneezing, nasal congestion, wheezing, or eczema that worsens around dust or carpets. Results are considered with symptoms, exposure history, and other allergy tests.

How is the test performed?

A blood sample is collected and analyzed for antibodies specific to D. pteronyssinus allergens. The reported result is qualitative, indicating whether specific IgE was detected.

How do I prepare for the test?

Fasting is usually not required. Follow any instructions from your healthcare professional and tell the laboratory about relevant allergies, recent treatments, or use of biologic allergy medications.

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.

◆Associated findings1

Short name

House dust mite-specific IgE

Frequently asked questions

What does a positive result mean?
It means the blood contains IgE antibodies to house dust mite allergens, indicating an allergic sensitization. Your clinician will interpret this alongside your symptoms and exposure history.
Can I still have a dust mite allergy if the test is negative?
Yes. Allergic sensitization can sometimes be undetectable in blood, so a negative result does not completely rule out dust mite allergy.
Does this test diagnose asthma or rhinitis?
No. It identifies sensitization to a specific allergen rather than diagnosing a condition. Your clinician may use the result with your history and examination to guide diagnosis and treatment.
  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 16, 2026. · Read our editorial policy