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Related Experiment Videos

The intracutaneous progressive dilution multi-food test.

W P King1, J M Motes

  • 1Department of Otolaryngology and Communicative Sciences, Baylor College of Medicine, Houston, TX.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|February 1, 1991
PubMed
Summary

This study introduces a faster method for the intracutaneous provocative food test (IPFT), allowing multiple food allergy tests simultaneously. This improves efficiency while maintaining the reliability of skin response interpretation for food sensitivity.

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Area of Science:

  • Allergy and Immunology
  • Diagnostic Testing

Background:

  • Skin response is considered more valid and reliable than symptom provocation for interpreting the intracutaneous provocative food test (IPFT).
  • The standard IPFT technique, interpreted by skin response, is taught at American Academy of Otolaryngic Allergy courses.
  • Current IPFT methods, though faster than oral challenges, still require significant time per test, hindering widespread adoption.

Purpose of the Study:

  • To present a time-efficient, multi-test technique for the intracutaneous provocative food test (IPFT).
  • To enable simultaneous testing of multiple foods (three to seven) within a single session.

Main Methods:

  • Development of a novel multi-test technique for IPFT.
  • Interpretation of results based on skin response.

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  • Exclusion criteria include patients with severe allergic reactions (asthma, angioedema) or history of anaphylaxis.

    • Main Results:

    • The proposed technique allows for testing of three to seven foods concurrently.
    • This multi-test approach significantly reduces the overall time required for IPFT compared to single-food testing.
    • The method maintains the established reliability of skin response interpretation.

    Conclusions:

    • A time-efficient, multi-test IPFT method has been developed.
    • This technique enhances the practicality of IPFT by reducing testing time.
    • The method is suitable for patients without a history of severe allergic reactions or anaphylaxis.