What is the safety mechanism set above the set pressure level to avoid excessive system pressure?

• A. Minimum pressure limit
• B. Maximum pressure limit
• C. Volume control limit
• D. Flow limit

Answer: (B)

The maximum pressure limit is a critical safety feature in mechanical ventilation systems that helps prevent excessive pressure from being delivered to the patient's airway. This safety mechanism ensures that if the pressure reaches a predetermined threshold during ventilation, the ventilator will automatically limit further airflow to avoid potential injury to the lungs or barotrauma.

Setting this limit is essential, particularly in patients who may have compromised lung conditions or sensitivity to high pressures, as it provides a safeguard against potentially harmful ventilatory settings. By automatically reducing or ceasing airflow when the maximum pressure is reached, the ventilator can maintain patient safety while enabling effective respiratory assistance. Understanding this mechanism allows healthcare providers to better manage and adjust ventilation settings according to the patient's needs while minimizing risks.