Description
Why It’s Done:
The BNP test is primarily used to:
• Diagnose or rule out heart failure, especially if you have symptoms like:
o Shortness of breath
o Swelling in the legs or ankles
o Fatigue or difficulty exercising
• Determine the severity of heart failure
• Monitor the effectiveness of heart failure treatment
• Distinguish between heart-related and lung-related causes of symptoms
Elevated BNP levels usually indicate that the heart is not pumping effectively, which could be due to conditions such as:
• Congestive heart failure
• Acute coronary syndrome
• Cardiomyopathy
• Pulmonary hypertension
• Kidney dysfunction
Preparation:
• No special preparation is typically needed for a BNP test.
• You can eat and drink normally before the test, unless your doctor advises otherwise.
• Inform your doctor about any medications you’re taking, as some drugs (like ACE inhibitors, diuretics, or beta-blockers) may affect BNP levels.
• Blood is drawn from a vein, usually from the arm, and sent to a lab for analysis.
