In the NYHA functional classification, which class corresponds to no limitation of activity with ordinary activity?

In the NYHA functional classification, which class corresponds to no limitation of activity with ordinary activity?

• A. Class II
• B. Class I
• C. Class III
• D. Class IV

Answer: (B)

In the NYHA functional classification, how symptoms limit daily activities is what’s being described. The aim is to capture how heart failure affects what you can do, not just how strong the heart is. The class with no limitation means you can carry out ordinary activities—like walking on flat ground, climbing stairs, and running errands—without symptoms such as shortness of breath, fatigue, or chest discomfort. There’s no restriction on activity in this category. By contrast, the next level means ordinary activity may produce symptoms, indicating a mild limitation. The following level involves a marked limitation, where you’re unable to perform ordinary activities without discomfort. The most advanced stage has symptoms even at rest, severely limiting daily function. This scale helps clinicians assess severity, guide treatment decisions, and discuss prognosis.

In the NYHA functional classification, how symptoms limit daily activities is what’s being described. The aim is to capture how heart failure affects what you can do, not just how strong the heart is. The class with no limitation means you can carry out ordinary activities—like walking on flat ground, climbing stairs, and running errands—without symptoms such as shortness of breath, fatigue, or chest discomfort. There’s no restriction on activity in this category.

By contrast, the next level means ordinary activity may produce symptoms, indicating a mild limitation. The following level involves a marked limitation, where you’re unable to perform ordinary activities without discomfort. The most advanced stage has symptoms even at rest, severely limiting daily function. This scale helps clinicians assess severity, guide treatment decisions, and discuss prognosis.