A high ultrasensitive C-reactive protein generally indicates the presence of inflammation in the body, such as acute upper respiratory tract infection, community-acquired pneumonia, acute bronchitis, acute gastroenteritis, urinary tract infection, and other infectious diseases. However, C-reactive protein is also an indicator of myocardial enzymology and has been associated with thrombosis and atherosclerosis. If there is no inflammation in the body, discomfort such as myocarditis, angina pectoris, heart failure, cardiac insufficiency may occur. Therefore, usually pay attention to more rest, regularly review the indicators of cardiac enzymes, etc., and seek medical attention promptly when there is panic, wheezing after activity, chest tightness, weakness, vomiting and other discomforts, and actively take oral isosorbide mononitrate capsules and other drugs to improve the symptoms.