F-5 
TVi Inspired tidal Volume 
TV/IBW  Tidal Volume Per Ideal Body Weight 
Volume Gas Volume 
Vtrap  Volume of Trap Gas 
V-A/C  Volume - Assist/Control Ventilation 
V-SIMV  Volume - Synchronized Intermittent Mandatory Ventilation 
RSBI  Rapid Shallow Breath Index 
WOB Work of Breath 
Vdaw  Airway dead space. 
VDaw/TVe    Ratio of airway dead space to tidal volume. 
VeCO
2
 Exhaled CO
2
 volume. 
ViCO
2
 Inspired CO
2
 volume. 
Vtalv Alveolar tidal ventilation. 
V’alv  Alveolar minute ventilation. 
V’CO
2
 CO
2
 elimination.