NT-proBNP Blood Test: What It Can Tell You About Heart Failure

Overview

NT-proBNP is a blood marker that can rise when the heart's walls are under increased strain. It helps clinicians investigate breathlessness, swollen legs and possible heart failure.

How is it assessed?

Age, kidney function, certain heart rhythms and the clinical setting affect the result. One elevated measurement does not establish a diagnosis; examination and tests such as echocardiography remain important.

Practical next steps

Describe how long symptoms have lasted, any need for extra pillows at night, rapid weight changes and medicines you take. A clinician can decide which tests are appropriate.

When is urgent help needed?

Severe breathlessness at rest, chest pain, pink frothy sputum or confusion requires urgent medical assessment.

Frequently asked questions

Is this information enough for a diagnosis?

No. Symptoms, examination, personal history and additional tests when needed must be considered together.

This article provides general health information and is not a substitute for individual assessment, diagnosis or treatment by a qualified professional.

Source: https://medlineplus.gov/lab-tests/natriuretic-peptide-tests-bnp-nt-probnp/