What is the initial test used to assess heart failure?

What is the initial test used to assess heart failure?

• A. BNP
• B. ANP
• C. NT-proBNP
• D. Troponin

Answer: (A)

When heart failure is suspected, measuring a natriuretic peptide serves as the quickest, most informative screen. BNP is released by ventricular muscle in response to stretching from volume or pressure overload, so its level rises as heart failure develops. A normal BNP makes heart failure unlikely in the right clinical setting, while an elevated BNP supports the diagnosis and helps gauge severity, guiding further steps such as echocardiography to confirm structural and functional changes. NT-proBNP is a related marker that can also be useful, but BNP is the traditional first-line test taught for this purpose. ANP comes from the atria and isn’t used as the initial test for suspected heart failure, and troponin reflects myocardial injury rather than heart failure itself.

When heart failure is suspected, measuring a natriuretic peptide serves as the quickest, most informative screen. BNP is released by ventricular muscle in response to stretching from volume or pressure overload, so its level rises as heart failure develops. A normal BNP makes heart failure unlikely in the right clinical setting, while an elevated BNP supports the diagnosis and helps gauge severity, guiding further steps such as echocardiography to confirm structural and functional changes. NT-proBNP is a related marker that can also be useful, but BNP is the traditional first-line test taught for this purpose. ANP comes from the atria and isn’t used as the initial test for suspected heart failure, and troponin reflects myocardial injury rather than heart failure itself.