| Challenges | N | Percentage |
| Participation in training requires self-finance, and nurses have financial difficulties | 336 | 50.68% |
| Training time limit | 435 | 65.61% |
| Nursing scheduling is difficult, insufficient nursing manpower restricts study time | 528 | 79.64% |
| Limited learning capability and lack of confidence to participate in CNE | 228 | 34.39% |