A schematic diagram of an inspiratory waveform delivered during typical volume cycled ventilation. Pplat is based on an end-inspiratory hold. The driving pressure can be seen as the difference between the Pplat and the PEEP, but can also be calculated as the ratio of the VT to the respiratory system compliance. PEEP, positive end-expiratory pressure; PIP, peak inspiratory pressure; Pplat, plateau pressure; VT, tidal volume.