A BNP (B-type natriuretic peptide) test measures levels of a hormone linked to heart function, helping to assess strain on the heart. This home test is a convenient way to monitor heart health and discuss any concerns with your healthcare provider.
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Heart health
NT Pro BNP
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NT-proBNP (N-terminal pro b-type natriuretic peptide) is a hormone released by the heart when it's under strain. Your heart produces higher levels of this marker when it's working harder than normal to pump blood around your body. This test is primarily used to help assess heart function and can be particularly useful in identifying heart failure or monitoring existing heart conditions. Elevated levels suggest your heart is under stress, though levels can also be raised by other factors including kidney disease and advancing age.
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Test limitations
BNP alone cannot diagnose heart failure. Elevated levels may indicate heart strain but require further evaluation by a healthcare provider. If you have symptoms of heart failure, like shortness of breath, chest pain, or swelling, seek urgent medical attention rather than relying on a home BNP test.
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What could high BNP levels mean?
The level of BNP in the blood increases when heart failure symptoms worsen and decreases when the heart failure condition is stable. The BNP level in a person with heart failure - even someone whose condition is stable - is higher than in a person with normal heart function.
What is BNP?
B-type natriuretic peptide (BNP) is a substance secreted from the ventricles or lower chambers of the heart in response to changes in pressure that happen when heart failure develops and worsens.
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