Quirce S, Contreras G, Dybuncio A, ChanYeung M, Peak Expiratory Flow Monitoring Is Not A Reliable Method For Establishing The Diagnosis Of Occupational Asthma, Am J Respir Crit Care Med, 1995;152:1100-1102,

BOHRF Original Authors' Main Conclusions

The original authors' main conclusions are taken from Abstract, Results and Discussion. They are decided upon by the authors of the BOHRF occupational asthma guidelines and form part of the guidelines.

Study aimed to assess reliability of peak expiratory flow (PEF) monitoring in 17 subjects referred for suspected occupational asthma. Subjects were requested to monitor their PEF 6 times daily for 2 weeks at work and at least 10 days away from work, unaware that their readings were stored. Of those who completed the monitoring, only 55.3% of the records were completely accurate in terms of the value and the timing of the measurements, 23.3% were inaccurate either in terms of the recorded value or of the timing of the measurement, and the remainder were fabricated results (not recorded by the Mini-Log). Our results suggest that PEF monitoring using ordinary peak flow meters for assessment of work-relatedness of asthma has limitations and is not reliable.

BOHRF Associated Evidence Statements

The BOHRF occupational asthma guidelines state that this reference is associated with the following evidence statements

** 3 Acceptable peak flow series can be obtained in around two thirds of those in whom a diagnosis of occupational asthma is being considered.

Non Bohrf Information

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