Brain Natriuretic Peptide (BNP)
Released by stressed heart ventricles. Key marker for diagnosing and monitoring heart failure severity.
Typical normal range
BNP: < 100 · NT-proBNP: < 300 pg/mL
If high ↑
Heart failure, fluid overload, pulmonary hypertension
If low ↓
Normal cardiac function; obesity can falsely lower levels
What is a normal Brain Natriuretic Peptide level?
A typical reference range is BNP: < 100 · NT-proBNP: < 300 pg/mL. Ranges vary between laboratories and can depend on age and sex, so compare your result with the range printed on your own report.
What does a high Brain Natriuretic Peptide level mean?
Heart failure, fluid overload, pulmonary hypertension. A single result rarely gives a diagnosis on its own; your doctor will interpret it alongside your symptoms and other tests.
What does a low Brain Natriuretic Peptide level mean?
Normal cardiac function; obesity can falsely lower levels. Your doctor will interpret it alongside your symptoms and other tests.
About the Inflammation & Cardiac
Inflammation markers rise when the body is fighting infection, injury or long-term inflammation. Cardiac markers are released when the heart is strained or damaged, and help doctors assess heart conditions.
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Medical disclaimer: Reference ranges vary by laboratory, age, sex, and clinical context. This page is for educational purposes only and is not a diagnosis. Always discuss your results with a qualified healthcare professional.