What Is a Cardiac BNP Test?
Specifically, the test measures levels of the protein BNP that is made in the heart and blood vessels. Blood is obtained via a venous or arterial puncture and send to the lab for analysis. Patients will often experience somesymptoms of heart failurethat would prompt a BNP level. Win McNamee / Staff : Getty Images NT-proBNP is a non-active prohormone that is released in the same way BNP is. The NT-proBNP level will also be increased if there are indications of new-onset or worsening heart failure....