20-5
20.4 Ventilation Calculations
20.4.1 Performing Calculations
1. In the main menu, select [Calc >>]→[Ventilation >>].
2. Enter values for calculation.
3. Select the [Calculate] button. The system performs a calculation per the current
settings and displays the calculated values.
îš‹ The values that exceed the range are displayed in yellow background. You can
select [Range] to view its normal range in the unit field. For those who are within
the range, their unit fields appear blank.
îš‹ Invalid values are displayed as [---].
In the [Ventilation Calculation] window, you can:
îš„ Change the pressure unit by selecting [Press. Unit] and then selecting the appropriate
setting. Corresponding pressure values shall convert and update automatically.
îš„ Trigger a recording by selecting the [Record] button. The currently displayed renal
calculations are printed out by the recorder.
îš„ Review the previously performed calculations by selecting [Review].
20.4.2 Entered Parameters
Abbreviation Unit Full spelling
FiO
2
% percentage fraction of inspired oxygen
RR rpm respiration rate
PeCO
2
mmHg partial pressure of mixed expiratory CO
2
PaCO
2
mmHg partial pressure of carbon dioxide in the arteries
PaO
2
mmHg partial pressure of oxygen in the arteries
TV ml tidal volume
RQ None respiratory quotient
ATMP mmHg atmospheric pressure
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