Answer :
Final answer:
To manage high ventilating pressures in ARDS patients, the Volume-Controlled Ventilation (VCV) or Pressure-Controlled Ventilation (PCV) modes can be used. The independent variable 'tidal volume' is altered in VCV, while 'Peak Inspiratory Pressure' is altered in PCV. The goal is to balance adequate ventilation with the risk of barotrauma.
Explanation:
To manage ventilating pressure in patients with Acute Respiratory Distress Syndrome (ARDS), the ventilator mode involving both volume and pressure limits could be used. This is known as Volume-Controlled Ventilation (VCV). The independent variable that can be altered in this mode is the 'tidal volume' while ensuring the pressure does not excessively increase. With VCV, the tidal volume is set, and the ventilator adjusts the pressure to achieve this.
Another strategy is the use of Pressure-Controlled Ventilation (PCV). Here, the independent variable that can be altered is 'Peak Inspiratory Pressure (PIP)'. In this mode, the pressure is set, and the ventilator delivers the highest volume it can while not exceeding the set pressure.
In both methods, the aim is to maintain an optimum balance between adequate ventilation and the risk of barotrauma associated with high pressures.
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