What does cardiac function level 3 mean?

Cardiac function grade III usually refers to the patient's physical activity is significantly limited, after the activity may appear palpitations, dyspnea and other discomfort symptoms.

Cardiac function grade is mainly based on the analysis of the patient's cardiac function from the amount of exercise, usually divided into four levels, from one to four cardiac function gradually deteriorated. Cardiac function grade III refers to the patient's physical activity is significantly limited, daily activities will appear chest distress, asthma, palpitations and other discomfort symptoms. Cardiac function grade III generally belongs to a poor cardiac function, indicating that the patient's cardiac disease is more serious, should seek medical treatment in time.