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Pruebas para alergias - Results

Nombres alternativos

Pruebas cutáneas para alergias; Parches cutáneos para alergias; Prueba de radioalergoadsorción (RAST); Prueba de escarificación para alergias

Valores normales:

En una persona no alérgica, las pruebas de alergia deben resultar negativas (ninguna reacción al alergeno).

Significado de los resultados anormales:

Un resultado positivo significa que usted reaccionó a una sustancia específica. Con frecuencia, aunque no siempre, un resultado positivo significa que los síntomas que usted está experimentando se deben a la exposición a la sustancia en cuestión. En general, una respuesta más fuerte significa que usted es más sensible a la sustancia.

Las personas pueden tener una respuesta positiva con la prueba cutánea para la alergia, pero no tener ningún tipo de problemas con la sustancia específica en cada día de la vida.

Las pruebas cutáneas generalmente son confiables. Sin embargo, si la dosis del alergeno es excesiva, se presentará una reacción positiva incluso en personas que no son alérgicas.

  • Reviewed last on: 6/25/2011
  • David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Stuart I. Henochowicz, MD, FACP, Associate Clinical Professor of Medicine, Division of Allergy, Immunology, and Rheumatology, Georgetown University Medical School.

Referencias

Bernstein IL, Li JT, Bernstein DI, Hamilton R, et al. American Academy of Allergy, Asthma and Immunology; American College of Allergy, Asthma and Immunology. Allergy diagnostic testing: an updated practice parameter. Ann Allergy Asthma Immunol. 2008 Mar;100(3 Suppl 3):S1-148.

Demoly P, Bousquet J, Romano A. In vivo methods for the study of allergy. In: Adkinson NF Jr, ed. Middleton’s Allergy: Principles and Practice. 7th ed. Philadelphia, Pa: Mosby Elsevier; 2008:chap 71.

Gober MD, DeCapite TJ, Gaspari AA. Contact dermatitis. In: Adkinson NF Jr, ed. Middleton’s Allergy: Principles and Practice. 7th ed. Philadelphia, Pa: Mosby Elsevier; 2008:chap 63.

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