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Dermatophagoides pteronyssinus IgG antibody (serum/plasma)

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

This test measures your immune system’s response to a common indoor allergen found in dust mites, which can trigger allergic reactions.

Quick summary

["Assesses your body’s sensitivity to a specific dust mite allergen."]

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

Key facts at a glance

LOINC
16742-9
Short code
D pteronyss IgG Bld Ql
Synonyms
D pteronyss IgG Bld Ql
Category
coagulation
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Ref low
0.8
Ref high
1.2
Critical range
— – 5 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
85610
SNOMED
396252006
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects levels of Immunoglobulin G (IgG) antibodies against *Dermatophagoides pteronyssinus*, a mite commonly found in household dust. IgG antibodies are part of your immune system’s long-term response to allergens and may indicate past exposure or mild allergic sensitivity.

Why It Might Be Ordered

Your healthcare provider may recommend this test if you suspect allergies to dust mites, especially if you experience symptoms like sneezing, itching, or respiratory issues in environments with high mite exposure (e.g., carpets, upholstery). It can also help guide allergy treatment plans.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample (usually from your arm) in a clinic or lab. The sample is processed to measure IgG antibody levels against the mite allergen.

What the Results Mean

Results are qualitative (positive/negative) or semi-quantitative, indicating whether your body has produced detectable IgG antibodies. A positive result suggests possible exposure or mild allergic reaction risk, but it does not confirm active symptoms or severity. Results are interpreted by your provider in context with your symptoms and medical history.

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: whole-blood

Inform your healthcare provider if you are taking blood thinners. No special preparation required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

IgG to Dust Mite (D. pteronyssinus)

Frequently asked questions

What does a positive result mean?
A positive IgG result means your immune system has recognized *Dermatophagoides pteronyssinus* allergen, which may indicate past exposure or mild allergic tendencies. However, IgG alone does not diagnose active allergies or predict symptom severity. It may be used alongside other allergy tests (e.g., skin prick or specific IgE) for a comprehensive evaluation.
Can this test replace allergy testing like skin prick tests?
No. IgG testing is not a direct measure of allergic reaction risk. Skin prick tests or blood IgE tests are more commonly used to diagnose active allergies. IgG results are often used alongside other tests to assess immune response patterns.
Why might my provider order this test?
Your provider may order this test to evaluate potential mite allergy exposure, especially if you live in an environment with high mite counts (e.g., humid climates, carpeted homes) or have symptoms like chronic nasal congestion, itchy skin, or asthma triggers. It can help tailor allergy management strategies.
  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