House Dust, H1
House dust is a complex mixture of particles including dust mites, insect fragments, textile fibers, mold spores, and animal dander. The main allergens are dust mite-derived substances, which can trigger allergic reactions year-round. Exposure occurs mainly indoors (homes, offices).
Indications
Suspected house dust allergy in the presence of the following symptoms:
- persistent allergic rhinitis (sneezing, runny nose, nasal congestion)
- nasal or ocular itching
- allergic conjunctivitis (red, watery eyes)
- cough, difficulty breathing
- worsening of symptoms indoors or at night
- exacerbation of bronchial asthma
Procedure
Specific IgE to house dust allergens is determined through a blood test:
- venous blood sample collection
- analysis using immunoassay methods
- helps identify sensitization to house dust components
The procedure takes a few minutes, and results are usually available within a few days.
Preparation:
- no special preparation is required
- testing is recommended fasting or 3–4 hours after a meal
- avoid alcohol consumption before testing
- avoid intense physical activity before sampling
- antihistamines generally do not affect results, but inform your doctor about any medications taken