Which of the following modes can be used with Pressure Control (PC) ventilation?

• A. Assist-Control (AC) only
• B. Controlled and IMV only
• C. Controlled, AC, IMV, and SIMV
• D. Synchronized only

Answer: (C)

Pressure Control (PC) ventilation is a mode that allows for the regulation of the inspiratory pressure delivered to the patient, ensuring that each breath does not exceed a certain pressure threshold. This makes it particularly useful in situations where lung compliance may be compromised, as it helps prevent ventilator-induced lung injury by avoiding excessive pressures.

The correct answer encompasses Controlled ventilation, Assist-Control (AC), Intermittent Mandatory Ventilation (IMV), and Synchronized Intermittent Mandatory Ventilation (SIMV) because all of these modes can be effectively utilized with Pressure Control settings.

In Controlled ventilation, the ventilator takes complete control over the breaths delivered to the patient, and these breaths can be set to be pressure-controlled. In Assist-Control (AC), if a patient initiates a breath, the ventilator will provide a preset volume or pressure, also allowing for pressure control. IMV allows for a combination of mandatory breaths and spontaneous breaths, where mandatory breaths can be pressure-controlled. Lastly, SIMV incorporates both mandatory and spontaneous breaths, with the mandatory components once again being able to utilize pressure control.

Understanding these modes is crucial in critical care settings, as they allow clinicians to tailor ventilation strategies to the specific needs of patients based on their respiratory status and compliance