What is a key characteristic of PRVC compared to VS?

What is a key characteristic of PRVC compared to VS?

• A. PRVC requires patient effort exclusively
• B. PRVC can be triggered by either patient or time
• C. PRVC is solely for controlled breaths
• D. VS has no cycle time limitations

Answer: (B)

The key characteristic of Pressure Regulated Volume Control (PRVC) compared to Volume Support (VS) is that PRVC can be triggered by either patient effort or time. In PRVC, the ventilation mode is designed to deliver a set tidal volume, while also adjusting the pressure delivered based on the patient's lung mechanics. This means that if a patient initiates a breath, the ventilator can respond to that effort, but it can also deliver breaths automatically based on a preset time if the patient does not initiate a breath within a specific timeframe. This flexibility is crucial in accommodating patients who may have varying levels of respiratory effort. It allows for both assistive and controlled ventilation, providing support when needed while still minimizing the work of breathing for the patient. In contrast, Volume Support (VS) is primarily designed to assist the patient by providing a set tidal volume only if the patient initiates a breath. Therefore, it does not trigger breaths based solely on time, which distinguishes it from PRVC.

The key characteristic of Pressure Regulated Volume Control (PRVC) compared to Volume Support (VS) is that PRVC can be triggered by either patient effort or time. In PRVC, the ventilation mode is designed to deliver a set tidal volume, while also adjusting the pressure delivered based on the patient's lung mechanics. This means that if a patient initiates a breath, the ventilator can respond to that effort, but it can also deliver breaths automatically based on a preset time if the patient does not initiate a breath within a specific timeframe.

This flexibility is crucial in accommodating patients who may have varying levels of respiratory effort. It allows for both assistive and controlled ventilation, providing support when needed while still minimizing the work of breathing for the patient.

In contrast, Volume Support (VS) is primarily designed to assist the patient by providing a set tidal volume only if the patient initiates a breath. Therefore, it does not trigger breaths based solely on time, which distinguishes it from PRVC.