B-type Natriuretic Peptide (BNP), EDTA Plasma analysis is a laboratory test used to measure the levels of B-type natriuretic peptide in blood plasma. BNP is a hormone primarily produced by the heart's ventricles in response to increased pressure and volume. This test is commonly performed to assess heart function, especially in individuals experiencing symptoms such as shortness of breath or leg swelling. Elevated BNP levels help diagnose heart failure and determine its severity, enabling physicians to make appropriate treatment decisions. The test is also used to monitor patients’ response to therapy and assess the need for further interventions.