What is the recommended vacuum pressure before suctioning a patient?

The recommended vacuum pressure for suctioning a patient is indeed 120 mmHg. This level of pressure strikes a balance between being effective enough to clear secretions without causing trauma to the patient's airway. Lower pressures, such as 80 mmHg or 100 mmHg, may not provide sufficient suction power to effectively clear the airways of thick mucus or secretions, which could compromise respiratory function. Conversely, using a pressure higher than 120 mmHg, such as 140 mmHg, increases the risk of damaging delicate airway structures, leading to complications like mucosal tearing or bleeding. Therefore, 120 mmHg is the optimal setting for safely and effectively performing suctioning in a clinical setting.