Which of the following is NOT a characteristic of Pressure Support Ventilation (PSV)?

The characteristic that is not associated with Pressure Support Ventilation (PSV) is the guarantee of a set minute ventilation. In PSV, the amount of support provided is determined by the patient's own efforts, leading to varying tidal volumes depending on the demand. The primary function of PSV is to assist the patient in achieving adequate tidal volumes while allowing for spontaneous breathing rather than mandating a specific minute ventilation.

This mode is beneficial because it reduces the work of breathing, particularly in patients with respiratory muscle fatigue. The pressure support aids in increasing the tidal volume as the patient initiates each breath, making it easier for them to draw in a greater volume of air. Furthermore, it is often utilized alongside other modes like Synchronized Intermittent Mandatory Ventilation (SIMV) or Continuous Positive Airway Pressure (CPAP), which helps provide additional support and improves overall ventilation without taking over the patient's breathing entirely.