NYHA Class IV is defined by?

NYHA Class IV is defined by?

• A. No limitation of physical activity
• B. Slight limitation of physical activity
• C. Marked limitation of physical activity
• D. Symptoms at rest

Answer: (D)

NYHA functional classification describes how heart failure limits daily activity. In the most advanced stage, symptoms are present even at rest, and any physical activity tends to worsen them. This is the essence of Class IV: patients experience symptoms at rest and cannot engage in any activity without discomfort. The other levels describe progressively lesser limitations: no limitation with ordinary activity means symptoms don’t appear until you push beyond everyday tasks; slight limitation means comfortable at rest but ordinary activity causes symptoms; marked limitation means comfortable at rest, but less than ordinary activity causes symptoms.

NYHA functional classification describes how heart failure limits daily activity. In the most advanced stage, symptoms are present even at rest, and any physical activity tends to worsen them. This is the essence of Class IV: patients experience symptoms at rest and cannot engage in any activity without discomfort.

The other levels describe progressively lesser limitations: no limitation with ordinary activity means symptoms don’t appear until you push beyond everyday tasks; slight limitation means comfortable at rest but ordinary activity causes symptoms; marked limitation means comfortable at rest, but less than ordinary activity causes symptoms.