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Airway resistance studies in bronchial asthma

Authors
Journal
Journal of Laboratory and Clinical Medicine
0022-2143
Publisher
Elsevier
Publication Date
Keywords
  • Clinical And Experimental
Disciplines
  • Medicine

Abstract

Abstract 1. 1. Airway resistance has been measured by means of a body plethysmograph and in normal subjects found to be 1.25 ± .22 cm. H 2O per L. per sec. 2. 2. Airway resistance in patients with bronchial asthma ranged between 2.0 and 9.6 cm. H 2O per L. per sec. 3. 3. Resistance values above the normal range were found in patients with bronchial asthma who had neither signs nor symptoms of their disease at the time tested. 4. 4. Airway resistance in asymptomatic patients ranged between 2.0 and 5.5 cm. H 2O per L. per sec. Resistance in symptomatic patients ranged between 4.3 and 9.6 cm. H 2O per L. per sec. 5. 5. Nebulized isoproterenol produced a significant reduction of airway resistance in both groups. 6. 6. Poor correlation was found between airway resistance and first-second vital capacity.

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