Which feedback mechanism is utilized in servo-controlled mode?

Which feedback mechanism is utilized in servo-controlled mode?

• A. Positive feedback
• B. Variable feedback
• C. Negative feedback
• D. Stable feedback

Answer: (C)

In servo-controlled mode of ventilation, the feedback mechanism utilized is negative feedback. This is essential because negative feedback helps to maintain homeostasis within the ventilatory system. In the context of mechanical ventilation, negative feedback involves continuously monitoring the output of the ventilator (such as tidal volume, airway pressure, or other parameters) and comparing it with the desired set values. If there is a discrepancy—such as if the patient's actual tidal volume is lower than the target value—the ventilator automatically adjusts its output to compensate and correct this imbalance. This mechanism ensures that ventilation meets the patient’s needs, promoting safety and effectiveness in respiratory support. Negative feedback is ideal for maintaining stable and controlled ventilation, as it allows for real-time adjustments in response to changes in patient condition, thereby preventing over-ventilation or under-ventilation.

In servo-controlled mode of ventilation, the feedback mechanism utilized is negative feedback. This is essential because negative feedback helps to maintain homeostasis within the ventilatory system.

In the context of mechanical ventilation, negative feedback involves continuously monitoring the output of the ventilator (such as tidal volume, airway pressure, or other parameters) and comparing it with the desired set values. If there is a discrepancy—such as if the patient's actual tidal volume is lower than the target value—the ventilator automatically adjusts its output to compensate and correct this imbalance. This mechanism ensures that ventilation meets the patient’s needs, promoting safety and effectiveness in respiratory support.

Negative feedback is ideal for maintaining stable and controlled ventilation, as it allows for real-time adjustments in response to changes in patient condition, thereby preventing over-ventilation or under-ventilation.