|Document ID (ISN)||109737|
|ISSN - Serial title
||0271-3586 - American Journal of Industrial Medicine
|Convention or series no.
||Interpretation of the "positive" methacholine challenge
||Oct. 2008, Vol.51, No.10, p.769-781. Approx. 120 ref.
||This article reviews potential causes of a positive methacholine challenge other than asthma or reactive airways dysfunction syndrome which have been reported in the medical literature. Factors which may be associated with a positive methacholine test include test methodology, normal variation of bronchial hyperreactivity in the general population and numerous medical conditions. In cases of inhalation exposure evaluations, alternative explanations must be considered when determining whether a causal association exists between the exposure and a positive methacholine test result.
||methacholine; inhalation; allergy tests; diagnosis; asthma
||literature survey; obstructive ventilatory impairment; allergic reactivity; hypersensitivity; description of technique; reliability
||D - Periodical articles
|Country / State or Province||USA|
|Broad subject area(s)
||Occupational medicine, epidemiology
||Diseases of the respiratory system (except for pneumoconiosis & similar)