proBNP (B-type natriuretic propeptide)

What is Brain Natriuretic Peptide (BNP)?

Brain Natriuretic Peptide (BNP) is a hormone primarily produced by the cardiac muscles in response to stretching. BNP levels in the blood increase when the heart has to work harder. It is often measured to diagnose heart failure or assess its severity, as higher BNP levels may indicate an increased workload on the heart.

Why should you have Brain Natriuretic Peptide tested?

Testing for BNP is useful for assessing the presence and severity of heart failure. It can help distinguish heart failure from other conditions with similar symptoms, such as pulmonary disorders. BNP testing is also valuable for monitoring the effectiveness of treatments for heart failure.

What does it indicate?

An elevated BNP level in the blood suggests that the heart is under pressure and may not be working efficiently, which can be a sign of heart failure. The BNP test can also help determine the risk of future cardiac problems in people without symptoms.

What does a high BNP level mean?

A high BNP level usually indicates heart failure or another condition that puts extra strain on the heart. It can also be elevated in cases of kidney failure, because the kidneys are less efficient at removing BNP from the blood.

What does a low BNP level mean?

A low BNP level is usually an indication that heart failure is less likely to be the cause of a patient's symptoms. It may indicate effective treatment or the absence of significant cardiac strain.

Pro-BNP, NT- (brain natriuretic propeptide)