5. Clinic findings ) compensated stage(include remittent stage) signs: cough, sputum, wheeze, exertional dyspnea, edema of low limb. exercise intolerance lysical examination decreased breath sounds. rhonchi or moist rales distance of the cardiac sound the upper border of the liver 2).uncompensated stage(include acute exacerbation) respiratory failure( induced by infection heart failure5.Clinic findings 1).compensated stage(include remittent stage) signs: cough, sputum, wheeze, exertional dyspnea, edema of low limb, exercise intolerance physical examination decreased breath sounds, rhonchi or moist rales distance of the cardiac sound P2>A2 the upper border of the liver  2).incompensated stage(include acute exacerbation) respiratory failure ( induced by infection) heart failure