In volume control mode, the morphology of the flow-time scalar is fixed and unaffected by respiratory system mechanics or Pmus. However, in pressure control mode, a strong Pmus can alter the morphology of the pressure-time scalar. Instead of the normal exponential decay, a sinusoidal waveform may appear in the presence of strong Pmus, and there may be an increase in the peak inspiratory flow.  The inspiratory limb of the flow-time scalar may reach the baseline early when ther

In pressure control mode, the pressure remains constant regardless of the respiratory mechanics. Conversely, in volume control mode, the morphology of the pressure-time scalar is influenced by Pmus (muscle pressure generated by inspiratory muscles), resistance, and compliance of the respiratory system.  In volume control mode a stronger Pmus can cause a downward deviation in the pressure-time scalar. Increased resistance results in a higher peak inspiratory pressure and a gre