This patient has mild heart failure according to the NYHA classification system. She is comfortable at rest but ordinary physical activity results in symptoms. Patients with NYHA class I heart failure have symptoms only with greater than ordinary physical activity. Patients with NYHA class II heart failure have symptoms with ordinary physical activity. Patients with NYHA class III heart failure have symptoms with minimal physical activity. Patients with NYHA class IV heart failure have symptoms at rest.
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