Use

B-type natriuretic peptide (BNP) is essential for diagnosing congestive heart failure (CHF). It is a 32-amino acid peptide secreted by the heart, primarily from the ventricles, in response to volume expansion and pressure overload. The BNP concentration increases with the severity of CHF and is loosely correlated with the New York Heart Association (NYHA) functional class. Elevated BNP levels may also occur in conditions like right heart failure, pulmonary hypertension, and acute coronary syndromes. It plays a role in regulating blood pressure and fluid balance through its natriuretic and diuretic properties.