In what scenario can a patient receive more volume than set by the clinician in PAug?

In what scenario can a patient receive more volume than set by the clinician in PAug?

• A. If the inspiratory flow demand is low
• B. If the patient is asleep
• C. If the patient’s inspiratory flow demand is high enough
• D. If the ventilator is malfunctioning

Answer: (C)

In Pressure Assist/Control (PAug) ventilation, the patient can receive more volume than what was set by the clinician when their inspiratory flow demand is high enough. This occurs because in PAug, the ventilator allows for patient-triggered breaths. If a patient initiates a breath and their demand for airflow exceeds the ventilator's set flow limit, the ventilator will supply additional air in response to that high demand. When the patient's drive for air is significant, the ventilator does not restrict them to the predetermined tidal volume but rather responds to fulfill their respiratory requirements, resulting in the possibility of delivering a larger volume than intended. Considering this context, scenarios such as a low inspiratory flow demand or the patient being asleep would not facilitate this excess volume, as those conditions typically indicate a lower need for airflow. Additionally, a malfunctioning ventilator could present various issues that might not contribute to accurately delivering volume based on patient demand.

In Pressure Assist/Control (PAug) ventilation, the patient can receive more volume than what was set by the clinician when their inspiratory flow demand is high enough. This occurs because in PAug, the ventilator allows for patient-triggered breaths. If a patient initiates a breath and their demand for airflow exceeds the ventilator's set flow limit, the ventilator will supply additional air in response to that high demand.

When the patient's drive for air is significant, the ventilator does not restrict them to the predetermined tidal volume but rather responds to fulfill their respiratory requirements, resulting in the possibility of delivering a larger volume than intended.

Considering this context, scenarios such as a low inspiratory flow demand or the patient being asleep would not facilitate this excess volume, as those conditions typically indicate a lower need for airflow. Additionally, a malfunctioning ventilator could present various issues that might not contribute to accurately delivering volume based on patient demand.