BNP and NT-proBNP - Normal Range

B-type natriuretic peptide (BNP) is a hormone produced by your heart. N-terminal (NT)-pro hormone BNP (NT-proBNP) is a non-active prohormone that is released from the same molecule that produces BNP. Both BNP and NT-proBNP are released in response to changes in pressure inside the heart. These changes can be related to heart failure and other cardiac problems. Levels goes up when heart failure develops or gets worse, and levels goes down when heart failure is stable. In most cases, BNP and NT-proBNP levels are higher in patients with heart failure than people who have normal heart function.

BNP and NT-proBNP are measured as a simple blood test to help diagnose and monitor heart failure. BNP and NT-proBNP test results provide different values.

A normal level of NT-proBNP  is:

  • Less than 125 pg/mL for patients aged 0-74 years
  • Less than 450 pg/mL for patients aged 75-99 years

If you have heart failure, the following NT-proBNP levels could mean your heart function is unstable:

  • Higher than 450 pg/mL for patients under age 50
  • Higher than 900 pg/mL for patients age 50 and older

A normal level of BNP is:

  • Less than 100 pg/mL

 

*pg/ml stands for picograms/milliliter

 

 

 

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
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