Table 26: Clinical scoring system for the diagnosis of acute heart failure
Predictor Possible score Your patient's score
Age > 75 y 1
Orthopnea present 2
Lack of cough 1
Current loop diuretic use (before presentation) 1
Rales on lung exam 1
Lack of fever 2
Elevated NT-proBNP* 4
Interstitial edema on chest x-ray 2
14 Total =
Likelihood of heart failure Low 0-5
Intermediate 6-8
High 9-14

*Elevated NT-proBNP was defined as > 450 pg/mL if age < 50 years and > 900 pg/mL if age > 50 years.

NT-proBNP, N-terminal pro brain natriuretic peptide.