Diagnostic procedures for allergies In-Depth

LIke ThisLIke ThisLIke ThisLIke ThisLIke This

Diagnostic tests for allergy may include any or all of the following:

Skin tests:

  • Measure your child's level of immunoglobulin E (IgE) antibodies in response to certain allergens or triggers
  • Very accurate
  • Small amounts of solution that contain different allergens will either be injected under the skin or applied with a small scratch. A reaction would appear as a small red area.
  • Usually not performed on children who have had a severe life-threatening reaction to an allergen or have severe dry skin (eczema)

Blood tests:

  • Measure IgE antibodies to specific allergens in the blood.
  • The blood test most commonly used is called RAST (radioallergosorbent test).
  • May be used when skin tests cannot be performed.
Boston Children’s is so much more than a hospital—it’s a community of researchers, clinicians, administrators, support staff, innovators, teachers, patients and families, all working together to make the impossible possible. ”
- Sandra L. Fenwick, President and CEO

Boston Children's Hospital
300 Longwood Avenue, Boston, MA 02115
For Patients: 617-355-6000
For Referring Providers: 844-BCH-PEDS | 844-224-7337

Close