Chest
Volume 65, Issue 5, May 1974, Pages 552-553
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Committee Report
Criteria for the Assessment of Reversibility in Airways Obstruction: Report of the Committee on Emphysema American College of Chest Physicians

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Clinical Data

Measurable reversibility is likely if the patient gives a history of considerable variability in shortness of breath demonstrated, for instance, by excellent exercise tolerance sometimes and marked limitation by dyspnea at other times. This is particularly significant when the increased dyspnea occurs in association with wheezing, especially when there is exposure to possible allergens. The history is important if the patient is seen during symptom-free period when examination of the chest and

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