Cardiac insufficiency grade 2 is equal to heart failure grade 2. Heart failure grading is mainly used with the American Society of Cardiology of New York heart function grading method, heart function level 2 is mainly pointed out that patients with heart disease physical activity is mildly restricted, no symptoms at rest, general activities can cause dyspnea, fatigue and other heart failure symptoms. Heart failure is a serious manifestation of various heart diseases. When heart function declines, the amount of blood transfused from the heart cannot meet the body’s metabolic needs. The blood in the organs and tissues also cannot return to the heart well, which can lead to bruising and swelling in other tissues of the body, and the manifestations of heart failure such as dyspnea, fatigue, and edema. If you have grade 2 cardiac insufficiency with symptoms such as dyspnea, weakness and edema, you need to go to the hospital and receive active treatment.