Baidu Health Network shows that the normal value of N-terminal pro-brain natriuretic peptide is less than 125pg/mL before the age of 75, and less than 450pg/mL after the age of 75 belongs to the normal range. N-terminal brain natriuretic peptide is mainly used to evaluate the severity of heart failure and heart failure. It is usually an important molecular marker for diagnosing heart failure. Different diseases may lead to the increase of N-terminal brain natriuretic peptide. In addition to heart failure, renal failure or severe respiratory diseases may also lead to an increase in this index. If these phenomena occur, we should go to a regular hospital as soon as possible and take a treatment plan according to the diagnosis results. You need to do your own nursing work during treatment.