Invasive Ventilation
Ventilation delivered via a tracheostomy (or endotracheal tube)
Non-Invasive Ventilation
Ventilation delivered via mask
CPAP
Continuous positive airway pressure
Bi-Level
Delivers both IPAP and EPAP
IPAP
Inspiratory positive airway pressure
EPAP
Expiratory positive airway pressure
Exhalation port or active exhalation valve
Intentional leak to allow patient to breath out and expel carbon dioxide
Wet circuit
A circuit attached to a humidifier
Dry circuit
No humidifier is used
HME
Heat moister exchange only found in dry invasive circuits.
Example: