A B-type natriuretic peptide or brain natriuretic peptide (BNP), is a commonly performed blood test that is used to diagnose or rule out heart failure. Specifically, the test measures levels of the ...

A brain natriuretic peptide (BNP) blood test measures the levels of BNP in a person’s blood. Doctors use BNP tests to indicate how well the heart is pumping blood throughout the body. Many healthcare ...