The Role of the Pulmonary Function Laboratory in Patients with Bronchial Asthma

摘要: Spirometry is a dynamic test that provides the best assessment of obstructive airway disease. The most useful value spirogram maximum volume air can be expelled with forced expiration following maximal inspiratory effort, FEV1. Lung measurements are static studies and less in assessing obstruction, but demonstrate presence pulmonary overinflation. The carbon monoxide diffusing capacity help distinguish between asthma emphysema patients smoke. Arterial blood gas assess consequences bronchospasm provide guide for hospitalizing exacerbation. Nonspecific bronchoprovocation challenge testing methacholine or other agents, may diagnose when clinical picture unclear. Bronchoprovocation using specific agents because substances work place. Exercise evaluate patient as “whole” dyspnea caused by respiratory diseases cardiac disease and/or deconditioning. Exercise document exercise induced benefits rehabilitation program limited asthma. Standardization technique rigid quality control an absolute necessity any laboratory.