What are the 4 stages of heart failure?
Stage 1- ordinary physical activity doesnt cause dyspnea, fatigue or palpitation , Stage 2- comfortable at rest , but ordinary physical activity causes dyspnea, fatigue or palpitation , Stage 3- - comfortable at rest , but less than ordinary physical activity causes dyspnea, fatigue or palpitation . Stage 4- uncomfortable at rest , unable to carry out any physical activity without discomfort.