What are the sensitivity and the specificity of pre and post shift changes in lung function in the diagnosis of occupational asthma?


* 3 Pre to post shift changes in lung function cannot be recommended for the validation or exclusion of occupational asthma.

Evidence

Burge PS, O'Brien IM, Harries MG , Peak Flow Rate Records In The Diagnosis Of Occupational Asthma Due To Colophony , Thorax , 1979 ; 34 : 308-316

Burge PS, O'Brien IM, Harries MG , Peak flow rate records in the diagnosis of occupational asthma due to isocyanates , Thorax , 1979 ; 34 : 317-323


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