When suctioning an ET tube, the nurse should use a suction pressure of how many mmHg?

The appropriate suction pressure for suctioning an endotracheal (ET) tube is typically set between 100-120 mmHg. This pressure range is effective for clearing secretions from the airway without risking damage to the tracheal mucosa or causing hypotension and hypoxemia in the patient.

Using suction pressure lower than 100 mmHg may not adequately clear mucus and other obstructive materials from the ET tube, leading to ineffective suctioning and possible respiratory complications. Conversely, pressures exceeding 120 mmHg can increase the risk of trauma to the airway, including mucosal injury, which can result in swelling, increased secretions, and further complications associated with airway management.

This balance in suction pressure is crucial, especially in populations such as patients with Acute Respiratory Distress Syndrome (ARDS), who may have already compromised respiratory function. Therefore, adhering to the recommended pressure range contributes to safer and more effective airway management.