| ARDS | Acute respiratory distress syndrome |
| COPD | Chronic obstructive pulmonary disease |
| COVID-19 | Coronavirus disease 19 |
| ED | Emergency department |
| EMS | Emergency medical services |
| ETI | Endotracheal intubation |
| HR | Heart rate |
| HUG | Geneva University Hospitals |
| ICU | Intensive care unit |
| NIV | Non-invasive ventilation |
| PPE | Personal protective equipment |
| SAMS | Swiss Academy of Medical Sciences |
| SARS-CoV-2 | Severe acute respiratory syndrome coronavirus 2 |
| SBP | Systolic blood pressure |
| SMUR | Service Mobile d’Urgences et de Réanimation |
| SpO2 | Peripheral oxygen saturation |