Allergy Phadiatop Test, in Visit Clinic

Phadiatop is a blood screening test that detects specific IgE antibodies to common inhalant (airborne) allergens such as pollens, dust mites, pet dander and molds. It helps determine whether respiratory symptoms are IgE‑mediated (atopic) and guides further specific allergy testing. A negative result makes inhalant allergy unlikely; a positive result prompts targeted testing or clinical correlation.

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Phadiatop is considered normal (negative) when <0.35 kU(A)/L. Values ≥0.35 kU(A)/L are regarded as positive, indicating sensitisation to common inhalant allergens. Clinical correlation is required — a positive test shows IgE sensitisation but not necessarily clinical allergy; a negative result makes inhalant allergy unlikely. Specific cutoff and units may vary slightly by laboratory and method; discuss results with your clinician.

Preparation for a Phadiatop blood test is minimal. No fasting or special diet is needed; you can usually continue regular medications including antihistamines. Tell your doctor or lab about immunotherapy, biologic treatments (e.g., omalizumab), recent blood transfusions, or infections, as these can affect results. Bring ID and a medication list, stay hydrated for an easier blood draw, and follow any provider-specific instructions.

Phadiatop allergy screening costs vary by country and provider. In private labs it typically ranges from about $20–$120 (roughly ₹1,500–₹10,000) or about £20–£80. Public health systems may provide it free when clinically indicated. Exact charges depend on location, laboratory, and whether other tests are bundled—check local laboratories or clinics for current pricing.

The Phadiatop is a reliable screening blood test for inhalant (respiratory) IgE sensitization, with high sensitivity (around 90–98%) and good specificity (roughly 85–95%). A negative Phadiatop largely excludes IgE‑mediated inhalant allergy, while a positive result needs clinical correlation and follow-up testing (specific IgE panels or skin prick), as accuracy varies by age, region and allergen panel.