is a very low reading of bnp a problem
November 22, 2005 - BMI (body mass index) is a measure of obesity. The higher the BMI, the fatter you are. As BMI increases, BNP blood test results take on different meaning. A very fat CHFer may have a lower BNP result and still have serious heart failure.
What does the test result mean? Higher-than-normal results suggest that a person has some degree of heart failure, and the level of BNP or NT-proBNP in the blood is related to its severity. Higher levels of BNP or NT-proBNP are often associated with a worse outlook (prognosis) for the person.