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19001717 BNP is a hormone that your heart produces when it's working too hard. This hormone helps regulate blood flow and reduce stress on your heart. High levels of BNP in your blood can be a sign that your heart is having problems, especially heart failure. When your heart has to work too hard, it releases a substance called BNP. This substance is like a distress signal, indicating that your heart is struggling. The BNP test measures the amount of this substance in your blood. Simply put, the BNP test helps doctors: check your heart health, diagnose heart failure, monitor treatment:
