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Related Experiment Videos

Evaluation of multi-allergen dipstick screening test.

J T Twiggs1, R L Gray, K Pichler

  • 1Department of Allergy, Marshfield Clinic, Wisconsin.

Annals of Allergy
|September 1, 1989
PubMed
Summary

The Quidel Allergen Screen (QAS) accurately detects specific serum IgE, matching the performance of Phadebas RAST. This allergy test offers a rapid, in vitro diagnostic method for atopic sensitivity.

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Area of Science:

  • Clinical immunology
  • Allergen diagnostics
  • In vitro diagnostics

Background:

  • Atopic sensitivity diagnosis relies on skin prick tests, intradermal tests, and serum IgE detection.
  • Phadebas RAST is a common method for quantifying specific IgE antibodies.
  • There is a need for rapid and easily interpretable in vitro allergy diagnostic methods.

Purpose of the Study:

  • To evaluate the diagnostic performance of the Quidel Allergen Screen (QAS).
  • To compare the QAS with the Phadebas RAST and clinical assessment for detecting specific serum IgE.
  • To determine if QAS is a sensitive and specific method for allergy diagnosis.

Main Methods:

  • 43 patients with known atopic sensitivity were tested.
  • Quidel Allergen Screen (QAS) and Phadebas RAST were performed in parallel.
  • Results were compared against standard skin prick tests, intradermal tests, and clinical assessment.

Main Results:

  • The Quidel Allergen Screen (QAS) demonstrated comparable sensitivity and specificity to Phadebas RAST.
  • No statistically significant differences were found between QAS and RAST.
  • QAS provided results that aligned with clinical assessments.

Conclusions:

  • The Quidel Allergen Screen (QAS) is a valid in vitro method for detecting specific serum IgE.
  • QAS offers a rapid and easily interpretable alternative to Phadebas RAST for allergy diagnostics.
  • QAS shows potential as an effective tool in diagnosing atopic sensitivity.

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