The Ventilation Index (VI) consists of PaCO2 multiplied by an index of minute ventilation.
ventilation index =
= (PaCO2 in mm Hg) * (respiratory rate per minute) * (peak inspiratory pressure in cm H2O) / 1000
• The higher the ventilation index, the poorer the ventilation achieved.
To read more or access our algorithms and calculators, please log in or register.