| Scenario number | Clinical scenario | Class of recommendation (I, IIa, IIb, III) | Level of evidence (A,B,C) |
| 1 | New onset heart failure of less than 2 weeks duration associated with a normal size or dilated left ventricle and hemodynamic compromise | I | B |
| 2 | New onset heart failure of 2 weeks to 3 months duration associated with a dilated left ventricle, and new ventricular arrhythmias, second or third degree heart block, or failure to respond to usual care within 1 to 2 weeks | I | B |
| 3 | Heart failure of greater than 3 months duration associated with a dilated left ventricle and new ventricular arrhythmias, second or third degree heart block, or failure to respond to usual care within 1 to 2 weeks | IIa | C |
| 4 | Heart failure associated with a dilated cardiomyopathy of any duration associated with suspected allergic reaction and/or eosinophilia | IIa | C |
| 5 | Heart failure associated with suspected anthracycline cardiomyopathy | IIa | C |
| 6 | Heart failure associated with unexplained restrictive cardiomyopathy | IIa | C |
| 7 | Suspected cardiac tumors | IIa | C |
| 8 | Unexplained cardiomyopathy in children | IIa | C |
| 9 | New onset heart failure of 2 weeks to 3 months duration associated with a dilated left ventricle, without new ventricular arrhythmias, or second or third degree heart block, and that responds to usual care within 1 to 2 weeks | IIb | B |
| 10 | Heart failure of greater than 3 months duration associated with a dilated left ventricle, without new ventricular arrhythmias, or second or third degree heart block, and that responds to usual care within 1 to 2 weeks | IIb | C |
| 11 | Heart failure associated with unexplained hypertrophic cardiomyopathy | IIb | C |
| 12 | Suspected arrhythmogenic right ventricular dysplasia/cardiomyopathy | IIb | C |
| 13 | Unexplained ventricular arrhythmias | IIb | C |
| 14 | Unexplained atrial fibrillation | III | C |
