ResMed III & III ST user manual Leak: Current mask leak units: litres per minute

Ramping indicator: Appears if the VPAP is in ramp mode. This disappears once the ramp time has elapsed.

Set pressure(s): In CPAP mode, this displays the set treatment pressure (units: centimetres of water). In other modes, it is exhalation and inhalation pressures (units: centimetres of water).

Trigger indicator: How the VPAP changes the pressure when you are inhaling. "S" (Spontaneous) indicates a patient triggered change and "T" (Timed) indicates a device triggered change.

Pressure bar graph: Graphical display of the changing pressure.

Leak: Current mask leak (units: litres per minute).

Respiratory rate: Number of breaths per minute.

Minute ventilation: Volume of air inhaled per minute (units: litres per minute). It is the product of respiratory rate and tidal volume.

Tidal volume: Volume of air inhaled per breath (units: millilitres per breath).

Cycle indicator: How the VPAP changes the pressure when you are exhaling. "C" indicates a patient cycled change; "TiMn" and "TiMx" indicates a device cycled change.

Measured inspiration time: The average inhalation time measured by the VPAP.

Set IPAP Max: The maximum inhalation time set by your clinician.

Measured I:E ratio: The inhalation to exhalation ratio measured by the VPAP.

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