Table 2.
High-Flow Nasal Cannula Oxygen Therapy Care Processes
| Care process | N=124 |
|---|---|
| HFNC total days (GIM + ICU), median (IQR) | 5 (3 to 8) |
| HFNC days on GIM, median (IQR) | 3 (2 to 6) |
| Symptom onset to HFNC in days, median (IQR) | 10 (7 to 12) |
| Location of HFNC initiation | |
| GIM ward | 102 (82.3%) |
| ICU | 2 (1.6%) |
| ED to GIM | 9 (7.3%) |
| ED to ICU | 9 (7.3%) |
| Other | 2 (1.6%) |
| Max FiO2 administered via HFNC on GIM, median (IQR) | 80 (60 to 95) |
| <50% | 7 (5.7%) |
| 50–59% | 17 (13.7%) |
| 60–69% | 21 (16.9%) |
| 70–79% | 15 (12.1%) |
| 80–89% | 17 (13.7%) |
| ≥90% | 47 (37.9%) |
| Max flow (L/min) via HFNC on GIM, median (IQR) | 60 (55 to 60) |
| 40 L/min | 2 (1.6%) |
| 45 L/min | 5 (4.0%) |
| 50 L/min | 16 (12.9%) |
| 55 L/min | 19 (15.3%) |
| 60 L/min | 82 (66.1%) |
| Total number of respiratory therapy assessments per patient, median (IQR) | 12 (6 to 21) |
| Respiratory assessments per patient day on GIM ward, median (IQR)* | 3.5 (2.9 to 4.3) |
| Critical care outreach team activation† | 91 (73.4%) |
*Calculated by dividing the total number of respiratory therapy assessments per patient by the total number of days the patient was on HFNC oxygen therapy on the GIM ward
†This reflects the number of patients that the critical care outreach team was activated for
HFNC, high-flow nasal cannula oxygen therapy; GIM, general internal medicine; ICU, intensive care unit; IQR, interquartile range; ED, emergency department; FiO2, fraction of inspired oxygen