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. 
  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. 
  Invalid values are displayed as [---]. 
 
In the [Ventilation Calculation] window, you can: 
  Change the pressure unit by selecting [Press. Unit] and then selecting the appropriate 
setting. Corresponding pressure values shall convert and update automatically. 
  Trigger a recording by selecting the [Record] button. The currently displayed renal 
calculations are printed out by the recorder. 
  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