Reference Range

Heart failure Evaluation

Age Group          NT-proBNP                           Interpretation

All                       <300.0 pg/mL                        Negative: Heart Failure unlikely

18 to <50 Yrs      300.0 to <450.0 pg/mL       Grayzone: Indeterminate
50 to 75 Yrs        300.0 to <900.0 pg/mL       Consider other causes
>75 Yrs               300.0 to <1800.0 pg/mL

18 to <50 Yrs      ≥ 450.0 pg/mL                      Positive: Heart Failure likely
50 to 75 Yrs        ≥ 900.0 pg/mL
>75 Yrs                ≥ 1800.0 pg/mL