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Medically Reviewed By

Dr. Srinivas

Consultant Pathologist

Pathology · Last reviewed: June 2026

Phadiatop Infant allergy screening blood test showing specific IgE analysis for food and inhalant allergens associated with eczema, food allergy, and childhood asthma

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Allergy Screening Phadiatop - Infant

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About this test

The Allergy Screening Phadiatop – Infant Test is a highly sensitive blood test designed to detect specific Immunoglobulin E (IgE) antibodies against common allergens responsible for allergic diseases in infants and young children. It is specially optimized for children below 5 years of age and serves as an effective first-line screening test for IgE-mediated allergies.

Unlike the adult Phadiatop test, the infant version includes both food allergens and inhalant allergens that are commonly associated with allergic diseases during early childhood. These allergens may include:

Common Food Allergens

  • Cow's milk
  • Egg white
  • Peanut
  • Wheat
  • Soybean
  • Shrimp

Common Inhalant Allergens

  • House dust mites
  • Cat dander
  • Dog dander
  • Tree pollens
  • Grass pollens
  • Weed pollens

The test helps identify children at risk of allergic diseases such as:

  • Atopic dermatitis (eczema)
  • Food allergies
  • Allergic rhinitis
  • Allergic conjunctivitis
  • Bronchial asthma
  • Atopic disorders

The Phadiatop Infant Test is useful in infants and young children experiencing recurrent skin rashes, eczema, wheezing, coughing, sneezing, or food-related allergic symptoms. A positive result indicates sensitization to one or more allergens and may require further allergen-specific testing.

Benefits of the Test

  • Screens for common childhood allergies
  • Detects both food and inhalant allergen sensitization
  • Helps diagnose eczema and allergic diseases
  • Supports early allergy management
  • Assists in preventing progression to asthma
  • Requires only a blood sample

Why Doctors Recommend This Test

Doctors may recommend the test for:

  • Recurrent eczema
  • Persistent skin rashes
  • Wheezing and coughing
  • Sneezing and nasal congestion
  • Suspected food allergy
  • Family history of allergies
  • Recurrent allergic symptoms in infants
  • Evaluation of atopic diseases

Preparation Before Test

Sample Required

  • Peripheral venous blood sample

Preparation Guidelines

  • No fasting is required
  • Antihistamines generally do not interfere with blood IgE testing
  • Inform your doctor about symptoms and previous allergic reactions
  • Follow laboratory instructions before sample collection

Reporting Time

Results are generally available within 1–3 working days, depending on laboratory methodology.

Who Should Take This Test?

  • Infants and children below 5 years of age
  • Children with eczema or recurrent skin allergies
  • Children with wheezing or allergic asthma symptoms
  • Infants with suspected food allergies
  • Children with family history of allergies
  • Patients undergoing pediatric allergy screening

Clinical Significance

Positive Results May Indicate

  • Food Allergy
  • Atopic Dermatitis (Eczema)
  • Allergic Rhinitis
  • Allergic Asthma
  • Environmental Allergy
  • Atopic Predisposition

Symptoms May Include

  • Skin rash
  • Eczema
  • Itching
  • Sneezing
  • Runny nose
  • Wheezing
  • Chronic cough
  • Watery eyes
  • Food-related allergic reactions

A positive result indicates sensitization to one or more allergens and may require additional specific IgE tests for allergen identification.

Important Note

The Phadiatop Infant Test is a screening test and does not identify individual allergens. Positive results should be interpreted together with clinical symptoms and physician assessment. Further allergen-specific testing may be recommended for detailed evaluation.

Test FAQs

What is the Phadiatop Infant Test?

It is a blood test that screens infants and young children for common food and inhalant allergies.

What age group is this test intended for?

It is specially designed for children younger than 5 years.

Is fasting required?

No. Fasting is generally not necessary.

What sample is required?

A peripheral venous blood sample is required.

Can antihistamines affect the test?

No. Antihistamines generally do not interfere with blood IgE testing.

Can this test diagnose eczema-related allergies?

Yes. It helps identify allergic sensitization associated with eczema and atopic dermatitis.

Does the test identify individual allergens?

No. It is a screening test. Additional specific IgE tests may be needed.

Can this test help predict asthma risk?

Early identification of allergic sensitization may help recognize children at risk for allergic asthma.

Does a positive result confirm allergy?

A positive result indicates sensitization and should be interpreted along with symptoms.

Who interprets the results?

An allergist, pediatrician, immunologist, pulmonologist, or physician interprets the results.

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