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Related Experiment Videos

A calibration program for Rotorod samplers

D A Frenz1, J C Elander

  • 1Multidata, Inc., Minnetonka, Minnesota 55305-1533, USA.

Annals of Allergy, Asthma & Immunology : Official Publication of the American College of Allergy, Asthma, & Immunology
|March 1, 1996
PubMed
Summary

Regular calibration of Rotorod Samplers is crucial for accurate allergy testing. Many devices deviate from manufacturer specifications, impacting data quality and patient care.

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Interpreting atmospheric pollen counts for use in clinical allergy: allergic symptomology.

Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology·2001

Area of Science:

  • Environmental Health
  • Allergy Diagnostics
  • Air Sampling Technology

Background:

  • Rotorod Samplers are widely used in the United States for allergy testing.
  • The necessity of regular calibration for these samplers has not been previously established.

Purpose of the Study:

  • To assess the operational conformity of field-used Rotorod Samplers with manufacturer specifications.
  • To investigate the impact of regular calibration on device performance.

Main Methods:

  • Allergists voluntarily submitted their Rotorod devices for calibration over two winter seasons.
  • Motor speed of each sampler was precisely measured using a stroboscopic tachometer.

Main Results:

  • Out of 89 examined Rotorod Samplers, only 10 operated at the exact 2400 RPM specification.
  • An additional 31 devices were within a 5% tolerance range.
  • The majority of devices showed deviations exceeding 5% or had non-operational motors.

Conclusions:

  • The study highlights the critical need for regular calibration of Rotorod Samplers.
  • Maintaining manufacturer specifications is essential for ensuring reliable allergy data.
  • Calibration is vital for consistent and high-quality diagnostic results.

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