Diagnostic tests in dermatology

Extract

• The diagnosis of skin diseases is usually based on the patient’s history and clinical presentation.
• The interpretation requires experience. Test results should always be interpreted in relation to the patient's symptoms.
• Specific IgE antibody tests or skin prick tests are used to investigate IgE-mediated immediate allergy, which predominantly causes respiratory tract symptoms. They are rarely indicated in the diagnosis of skin diseases (e.g. contact urticaria, severe atopic dermatitis in young children and food allergies).
• Epicutaneous tests (patch tests) are used to diagnose delayed contact allergy (allergic contact dermatitis).

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Allergology, Child, Dermatitis, Dermatitis, Allergic Contact, Dermatitis, Atopic, Dermatitis, Photoallergic, Dermatology, Drug Hypersensitivity, Finn Chamber, Intradermal Tests, L30.9, L50.2, L50.3, Patch Tests, R21, Urticaria, Z01.5, antihistamines, chamber test, cholinergic urticaria, cold urticaria, contact urticaria, dermographism, epicutaneous light-sensitivity test, exposure challenge test, heat urticaria, light urticaria, local anesthetic hypersensitivity, oral exposure test, photocontact allergy, repeated open application test, scratch test