According to NYHA, which class describes a patient with no limitation of physical activity and ordinary activity does not cause undue fatigue?

• A. Class 0
• B. Class 1
• C. Class 2
• D. Class 3

Answer: (B)

The NYHA functional classification describes how heart failure affects daily activities, ranging from I to IV. No limitation of physical activity with ordinary activity not causing undue fatigue fits the class where you can do typical daily tasks without symptoms, and fatigue only appears with unusually strenuous effort. That is Class I. If there were any limitation, it would move to higher classes: slight limitation with ordinary activity causing symptoms would be Class II, marked limitation would be Class III, and symptoms at rest would be Class IV.