| Knowledge of heart failure in general | | |
| What can cause a rapid worsening of heart failure symptoms | 29 | 8.8 |
| What does heart failure mean | 164 | 49.7 |
| What is the function of the heart | 226 | 68.5 |
| What are the main causes of heart failure | 155 | 47.0 |
| Adequate heart failure in general knowledge (Correct ≥3 questions) | 72 | 21.8 |
| Knowledge of heart failure treatment | | |
| How much fluid are you allowed to take at home each day | 155 | 47.0 |
| Which of these statements (about medication) is true | 140 | 42.4 |
| Why should someone with heart failure follow a low-salt diet | 45 | 13.6 |
| Which statement about exercise for people with heart failure is true | 105 | 31.8 |
| Why are water pills prescribed to someone with heart failure | 116 | 35.2 |
| What is the best thing to do when you are thirsty | 29 | 8.8 |
| Adequate heart failure treatment knowledge (Correct ≥ 4 questions) | 21 | 6.4 |
| Knowledge of heart failure symptoms/symptom recognition | | |
| How often should patients with severe heart failure weigh themselves | 62 | 18.8 |
| Why is it important that patients with heart failure should weigh themselves regularly | 128 | 38.8 |
| What is the best thing to do in case of increased shortness of breath or swollen legs | 174 | 52.7 |
| Why can the legs swell up when you have heart failure | 115 | 34.9 |
| Which statement about weight increase and heart failure is true | 67 | 20.3 |
| Adequate heart failure symptoms/symptom recognition (Correct ≥4 questions) | 27 | 8.2 |
| Adequate overall heart failure knowledge (Correct ≥10 questions) | 16 | 4.8 |
| Overall heart failure knowledge score | 5.2 ± 2.3 |