D
The figure shows the methodology in the evaluaiton of a complaint
of dyspnea.
History and physical - Evidence suggestive of cardio- pulmonary or other disease
CBC, CXR, ECG, Spirometry - Asthma, COPD, chronic heart failure,cardiomegaly,
hypertension cardiovascular disease, anemia
Liver function tests, Creatinine - Liver disease, renal disease
Full PFTs, Echocardiogram - Restrictive diseases; valvular heart disease, left
ventricular dysfunction
Exercise Test - Deconditioning, occult coronary artery disease, asthma, various
causes of oxyhemoglobin desaturation