Calculations
20-8
20.4.2 Entered Parameters
Abbreviation Unit Full spelling
FiO2 % percentage fraction of inspired oxygen
RR rpm respiration rate
PeCO2 mmHg mixed expire CO2 pressure
PaCO2 mmHg arterial carbon dioxide level
PaO2 mmHg arterial oxygen level
TV ml tidal volume
RQ None respiratory quotient
ATMP mmHg atmospheric pressure
20.4.3 Calculated Parameters
Abbreviation Unit Full spelling
PAO2 mmHg alveolar oxygen level
AaDO2 mmHg alveolar-arterial oxygen difference
Pa/FiO2 mmHg oxygenation ratio
a/AO2 % arterial to alveolar oxygen ratio
MV L/min minute ventilation
Vd ml volume of physiological dead space
Vd/Vt % physiologic dead space in percent of tidal volume
VA L alveolar volume
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