The operator sets a volume for delivery to the patient. Volume ventilation is also called
Volume-targeted ventilation
Volume-limited ventilation
Volume-controlled ventilation
The operator sets a pressure for delivery to the patient. Pressure ventilation is also called
Pressure-targeted ventilation
Pressure-limited ventilation
Pressure-controlled ventilation
The primary variable the ventilator adjusts to achieve inspiration is called the control variable . As the equation of motion shows, the ventilator can control four variables: pressure, volume, flow, and time. However, the ventilator can control only one variable at a time. Therefore it must operate as a pressure controller, a volume controller, a flow controller, or a time controller.