5. Clinic findings compensated stage(include remittent stage signs: cough, sputum, wheeze, exertional dyspnea, edema of low limb. exercise intolerance Lyrical examination decreased breath sounds. rhonchi or moist rales distance of the cardiac sound 2 the upper border of the liver 22).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