Pulmonary Function Testing Cases The following cases are designed to help you learn how to interpret pulmonary function tests. Each case contains a short clinical scenario and the pulmonary function tests for that patient. For each case, you should attempt to describe the pattern of abnormality, if one is present,

grade the severity of the abnormality and

generate a differential diagnosis for the observed abnormality. The cases have been provided by Kenneth Steinberg, MD, Division of Pulmonary and Critical Care Medicine. Case 1>> A 65 year-old man undergoes pulmonary function testing as part of a routine health-screening test.

A 65 year-old man undergoes pulmonary function testing as part of a routine health-screening test. Case 2>> A 54 year-old man presents to his primary care provider with dyspnea and a cough.

A 54 year-old man presents to his primary care provider with dyspnea and a cough. Case 3>> A 60 year-old man presents to his primary care provider with complaints of increasing dyspnea on exertion.

A 60 year-old man presents to his primary care provider with complaints of increasing dyspnea on exertion. Case 4>> A 25 year-old man presents to his physician with complaints of dyspnea and wheezing.

A 25 year-old man presents to his physician with complaints of dyspnea and wheezing. Case 5>> A 41 year-old woman presents to the General Internal Medicine Clinic at Harborview Medical Center complaining of dyspnea with mild exertion.

A 41 year-old woman presents to the General Internal Medicine Clinic at Harborview Medical Center complaining of dyspnea with mild exertion. Case 6>> A 30 year-old woman presents for evaluation of dyspnea on exertion which has been present for 2 months.

A 30 year-old woman presents for evaluation of dyspnea on exertion which has been present for 2 months. Case 7>> A 73 year-old man presents with progressive dyspnea on exertion over the past one year.

A 73 year-old man presents with progressive dyspnea on exertion over the past one year. Case 8>> A 64 year-old woman presents with complaints of dyspnea and orthopnea. She is a life-long non-smoker.

A 64 year-old woman presents with complaints of dyspnea and orthopnea. She is a life-long non-smoker. Case 9>> A 35 year-old previously healthy man presents with dyspnea, fevers, chills and night sweats for the past 2 months.

A 35 year-old previously healthy man presents with dyspnea, fevers, chills and night sweats for the past 2 months. Case 10>> A 53 year-old woman presents with increasing dyspnea on exertion. She denies cough, fevers, hemoptysis, weight loss or sweats.

A 53 year-old woman presents with increasing dyspnea on exertion. She denies cough, fevers, hemoptysis, weight loss or sweats. Case 11>> A 36 year-old woman presents with a several month history of worsening dyspnea on exertion and exercise limitation.

A 36 year-old woman presents with a several month history of worsening dyspnea on exertion and exercise limitation. Case 12>> A 44 year-old woman with cirrhosis secondary to chronic alcohol abuse and Hepatitis C presents with complaints of increasing dyspnea. Abbreviations used in cases: FVC Forced Vital Capacity FEV 1 Forced Expiratory Volume in One Second TLC Total Lung Capacity RV Residual Volume DLCO Diffusion Capacity for Carbon Monoxide BD Bronchodilator Top of Page