Reference

Lin FJ, Chen H, ChanYeung M, New Method For An Occupational Dust Challenge Test, Occup Environ Med, 1995;52:54-56,

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.

Specific challenge tests with a suspected allergen in the workplace are standard to confirm the diagnosis of asthma. Facilities for sophisticated exposure tests are available only in a few institutions. A pilot study was carried out that used a novel approach for an occupational dust challenge test with a rotahaler. The results showed that a positive challenge test with a rotahaler to deliver red cedar dust was specific in the diagnosis of red cedar asthma but a negative response could not rule out the diagnosis. The rotahaler has merits of being easy to operate, safe, inexpensive, and readily available.

BOHRF Associated Evidence Statements

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

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A large number of concordant studies from different centres using different methodologies demonstrated that increased non-specific reactivity is often found in workers with occupational asthma. There are however many reports of normal methacholine or histamine reactivity within 24 hours of exposure in workers with confirmed occupational asthma.

Non Bohrf Information

This page is showing the information from the BOHRF occupational asthma guidelines for this reference. To see additional information, including opinions left by users of this website please view the full reference. This page allows users to comment on the reference and suggest it as evidence for questions. These may be the existing questions from the Bohrf occupational asthma guidelines or questions that have been put forward by users of this website.