Volume controlled Ventilator (VCV)
Also called volume-controlled or volume-cycled ventilation
Volume control favours the control of ventilation.
Set volume, pressure variable.
Better control of Ventilation than oxygenation.
VCV requires the clinician to set the peak flow rate, flow pattern, tidal volume, respiratory rate, positive end-expiratory pressure (PEEP), and FiO2 (fraction of inspired oxygen.
Used in used in anesthesia mode.
Patient is fully sedated in this mode so it provide rest to respiratory muscle.
Ventilator delivers the preset tidal volume (TV) with constant flow during the preset inspiratory time at preset respiratory rate.
Pressure-controlled ventilation (PCV)
Pressure control favours the control of oxygenation.
Set pressure, volume variable.
Better control of oxygenation than Ventilation.
The PCV mode is used for mandatory pressure control ventilation with fixed pressure levels. This mode is used on patients who have no spontaneous respiration.
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