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3.5.2. Live Monitoring Parameters
The following Live Monitoring Parameters are displayed at the
section 2 of the screen:
Paw
(cmH
AV
measured during the last 60 seconds. This measurement is
monitored by the ventilator at all times and modes. The number on
the display will be updated every 15 seconds.
Mve (L): Minute volume is the total exhaled volume for the last
60 seconds as calculated using the last 8 breaths. The Mve will
constantly change as the value is recalculated and displayed at the
end of exhalation phase. When unit is first turned on or resumed
after pause or on selecting a new mode, the Mve calculation will
be based on first then second then third and so on until the 8th
exhaled tidal volume when the above logic will be followed.
Rate (bpm): Rate (BPM) is the rate at which breaths are delivered in
one minute. It is the monitored breath rate calculated by measuring
the time interval (Tb in seconds) between 2 breaths. Rate (BPM)
= 60 / Tb. The number is updated after each breath. This number
will be displayed for both mandatory and spontaneous breathing
phases.
Vte (ml): Tidal volume is the volume exhaled from the patient in
mandatory, spontaneous or PSV (Pressure Support Ventilation)
breaths. Vte is calculated by the measurement of the entire expired
flow displayed as a volume. Vte display will be updated at the
beginning of the next inspiratory phase (The end of exhalation
phase).
Paw
(cmH
Peak
measured during the inspiratory phase. The displayed number on
the screen represents the maximum pressure during mandatory
inspiratory phase of SIMV, CPR modes as well as spontaneous
inspiratory phase of CPAP mode. This number will be updated at
the end of each inspiratory phase.
Note: Mve, Rate and Paw are not active during CPR mode and
displayed with "--"
18
O): Paw AV is the average patient airway pressure
2
O): Peak air way pressure is the maximum pressure
2
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