Inspiration, expiration and CPAP set pressures
Inspiration Set Pressure, Expiration Set Pressure and CPAP Set Pressure are DC signals that show setpoint pressures for the current breath. Inspiration Set Pressure shows the inspiration pressure delivered by the device for the current breath. Expiration Set Pressure shows the expiration pressure delivered by the device for the current breath. CPAP Set Pressure shows a combination of inspiration and expiration set pressures. This concept is applicable to all therapies, including automatic modes as shown in the following table.
Therapy | Inspiration Set Pressure | Expiration Set Pressure | CPAP Set Pressure |
|---|---|---|---|
CPAP | CPAP pressure | CPAP pressure less EPR level | CPAP pressure |
AutoSet/AutoSet for Her | Current AutoSet pressure | Current AutoSet pressure less EPR level | Current AutoSet pressure |
Bilevel (S, T, ST) | IPAP pressure | EPAP pressure | EPAP pressure |
VAuto | Current IPAP | Current EPAP | Current EPAP |
ASV | EPAP plus current Pressure Support | EPAP | EPAP |
ASVAuto | Current EPAP plus current Pressure Support | Current EPAP | Current EPAP |
Inspiration Set Pressure and Expiration Set Pressure allow one common PSG montage to capture pressure setpoints during titration of any therapy mode. CPAP Set Pressure can be substituted for Inspiration Set Pressure if required for compatibility with certain PSG systems.
Important
These signals are available for only some ResMed therapy devices.