If the patient is a young adult and has recently developed shortness of breath with cough, low-grade fever, fatigue, night sweats and other symptoms, tuberculosis is considered to be a high possibility. If the patient is an elderly person and has shortness of breath after activity without respiratory symptoms, and sometimes has anterior heart discomfort, and has a history of hypertension and diabetes mellitus, cardiac insufficiency is considered to be more likely, and electrocardiogram, cardiac natriuretic factor, cardiac enzymes and other related examinations should be improved.