| Non-respiratory ward | Respiratory ward | |||
| Pre-training | Post-training | Pre-training | Post-training | |
| n = 21 | n = 35 | n = 18 | n = 19 | |
| Written consent | 14% (3) | 31% (11) | 89% (16) | 53% (10) |
| Respiratory operator | 14% (3) | 34% (12) | 100% (18) | 100% (19) |
| USS placement | 14% (3) | 9% (3) | 17% (3) | 11% (2) |
| “Safe” | 71% (15) | 63% (22) | 83% (15) | 84% (16) |
| Major complication | 0% (0) | 9% (3) | 0% (0) | 0% (0) |
| Minor complication | 43% (9) | 54% (19) | 39% (7) | 26% (5) |