What mode of ventilation will automatically vary the pressure support provided as patient effort changes to maintain a "normal" work of breathing?

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Proportional assist ventilation (PAV) is a mode of ventilation that uses sensors to detect changes in the patient's breathing effort and provides pressure support in proportion to that effort. This means that as the patient's effort increases, the ventilator will provide more support, and as their effort decreases, the support provided will also decrease. This helps to maintain a more "normal" work of breathing and can improve patient comfort and synchrony with the ventilator. Synchronized intermittent mandatory ventilation (A) delivers a set number of breaths at a set volume or pressure, with the option for the patient to trigger additional breaths. Volume-control continuous mandatory ventilation (C) delivers a set volume of air with each breath, regardless of the patient's effort. Assist-control volume ventilation (D) delivers a set volume of air with each breath but allows for patient-triggered breaths at that same volume.

What Mode of Ventilation Will Automatically Vary the Pressure Support