pulmonary andcritical carepearls A 39-Year-Old SmokerWithEffort Dyspnea, NormalSpirometry Results, andLowDiffusing Capacity*

Nyat KooiChin, MBBS;andTowK.Lim, MBBS (CHEST 1998; 113:231-33) A39-year-old Chinese malestaff sergeant inthe Navy was referred fortheevaluation ofincreas¬ ing effort dyspnea overa5-year period. Hecould not perform satisfactorily during thefrequent exercise