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Related Experiment Videos

Validity and reproducibility of multi-test skin test device

C Mahan1, S Spectror, S Siegel

  • 1Division of Immunology/Allergy, UCLA Medical Center.

Annals of Allergy
|July 1, 1993
PubMed
Summary

The Multi-Test device showed better reproducibility in skin allergy testing compared to the Morrow Brown needle. Patient preference favored the Multi-Test, with no observed effect of positive reactions on adjacent controls.

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Area of Science:

  • Allergy and Immunology
  • Dermatology
  • Clinical Trials

Background:

  • Skin testing is a common diagnostic tool for allergies.
  • Standardization and patient comfort are key considerations in skin testing methods.

Purpose of the Study:

  • To compare the reproducibility of the Multi-Test and Morrow Brown needle for skin testing.
  • To assess the influence of positive skin reactions on adjacent negative controls.
  • To evaluate patient preference between the two skin testing devices.

Main Methods:

  • Thirty patients underwent skin testing using both Multi-Test and Morrow Brown needle devices.
  • Antigens, histamine, glycerosaline, and blank controls were utilized.
  • Reproducibility and the effect of positive reactions on adjacent sites were evaluated.

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Main Results:

  • The Multi-Test device demonstrated superior reproducibility compared to the Morrow Brown needle.
  • No significant influence of histamine or strongly positive antigen reactions on adjacent negative controls was observed.
  • Patients expressed a preference for the Multi-Test device over the Morrow Brown needle.

Conclusions:

  • The Multi-Test device offers improved reproducibility for skin testing.
  • The tested skin testing methods do not appear to interfere with adjacent control sites.
  • Patient preference supports the use of the Multi-Test device in clinical practice.