NT-proBNP Cardiac Marker

The NT-proBNP (N-Terminal pro-B-type Natriuretic Peptide) test is a vital diagnostic tool used primarily to evaluate heart function and detect heart failure. When the heart is under stress or working harder than usual to pump blood, it releases this protein into the bloodstream. This test is exceptionally helpful because it allows doctors to distinguish between heart-related issues and lung-related conditions (like COPD) in patients presenting with shortness of breath. Beyond initial diagnosis, it serves as an objective stress gauge for the heart, helping clinicians monitor the severity of heart failure and determine how well a patient is responding to their current treatment plan.