New York Heart Association


New York Heart Association

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NYHA.

The professional society that promulgated four classes of heart failure. Class 1: is asymptomatic but there is risk because of hypertension with evidence of organ stress; Class 2: is mildly symptomatic during significant exertion; Class 3: is moderately symptomatic during light exertion; Class 4: the patient is unable to leave the room or bed without severe shortness of breath.