True about COPD are all except: September 2005

Ans. B: Left ventricular Failure The natural course of severe COPD is punctuated by episodes of acute exacerbation of symptoms, each accelerating fuher decline in lung function with eventual development of chronic respiratory failure, pulmonary aery hypeension, right ventricular hyperophy and failure. This sequence terminates fatally. Secondary polycythemia due to chronic hypoxemia may develop in persons with severe chronic obstructive pulmonary disease (COPD) or in those patients who smoke excessively. A hematocrit value of more than 52% in males and more than 47% in female indicates disease. Clubbing is not a sign of COPD, and it's presence should ale the clinician to investigate the cause of clubbing.