| Observed practices in nursing assessment of patients on UWCD | Score (%) | N | |
| Yes | No | ||
| Assessment of the patients respiratory status by auscultation | 10 | 90 | 10 |
| Assessment that the chest tube is set to appropriate suction | 20 | 80 | 10 |
| Assessment whether the water level in the water seal chamber is maintained at the marked line | 60 | 40 | 10 |
| Assessment for air leaks in the water seal chamber | 10 | 90 | 10 |
| Assessment if the chest tube connections and dressings are secure | 100 | 0 | 10 |
| Assessment of the drainage system for the color and the amount of drainage | 90 | 10 | 10 |
| Assessment for the level of pain | 70 | 30 | 10 |
| Assessment of the patency of the tubing system | 70 | 30 | 10 |