NYHA CLASSIFICATION OF BREATHING DIFFICULTY

CLASS                                              SYMPTOMS

CLASS 1                        No limitation of physical activity, Ordinary physical activity does not cause                                                  undue fatigue, palpitations or breathing difficulty

CLASS 2                        Slight limitation of physical activity. Comfortable at rest but Ordinary physical                                              activity cause  undue fatigue, palpitations or breathing difficulty

CLASS 3                       Marked limitation of physical activity. Less than ordinary activities cause fatigue,                                         palpitations and breathing difficulty

CLASS 4                       Unable to carry out any physical activity without discomfort. Symptoms are                                                 present even at rest.