Which of the following is the New York Heart Association classification for a patient with symptoms of heart failure at rest?

Class I indicates no limitation of physical activity; patients are asymptomatic and can perform ordinary activities without discomfort. This classification is not applicable for patients who experience symptoms at rest, as they are entirely symptom-free during normal activities.

Class II patients have mild symptoms of heart failure with slight limitations during ordinary physical activity. They are comfortable at rest but may experience fatigue or shortness of breath with exertion, which does not align with the criteria for Class IV patients who have symptoms even when at rest.

Class III patients exhibit marked limitation in physical activity; they are comfortable at rest but experience significant symptoms with minimal exertion. Although they have more severe symptoms than Class II, they do not exhibit symptoms while at rest, distinguishing them from Class IV patients who do.