| BMI | Body Mass Index |
| CI | Confidence Interval |
| CPR | Cardiopulmonary Resuscitation |
| ECG | Electrocardiogram |
| fps | Frames Per Second |
| I:E ratio | Inspiration Expiration ratio |
| LP15 | LifePack 15 (monitor-defibrillator) |
| maxDS | Maximum downslope point of the TTI ventilation waveform |
| OR | Operating Room |
| Paw | Airway Pressure |
| PawEO | Expiration Onset in Airway Pressure |
| pETCO2 | Partial Pressure of Exhaled Carbon Dioxide |
| TIpeak | Peak point of the TTI ventilation waveform |
| TTI | Trans Thoracic Impedance |