What is the adult suction pressure in MPa?

Feb 25, 2023 Source: Cainiu Health
Dr. Guo Xiheng
Introduction
The suction pressure for adult endotracheal aspiration refers to the negative pressure value used during sputum removal, typically ranging from 0.04 to 0.053 MPa or 0.033 to 0.053 MPa. If the suction pressure is too low, it may fail to remove secretions effectively; if too high, it can cause airway injury. Suctioning is performed by a healthcare provider when patients are unable to cough or clear secretions effectively, or when they experience difficulty breathing or respiratory failure, in order to maintain airway patency.

The suction pressure for adults generally refers to the negative pressure value used during adult suctioning, with a normal range of 0.04–0.053 MPa or 0.033–0.053 MPa.

During suctioning, it is important to maintain the correct negative pressure. If the suction pressure is too low, it may fail to remove secretions effectively; if it is too high, it may cause airway injury. Patients who are unable to cough or clear secretions effectively, or those experiencing difficulty breathing or even respiratory failure, may require suctioning performed by a healthcare professional to remove mucus or secretions from the airway. This helps relieve airway obstruction and maintain a patent airway.

Suctioning procedures should be performed gently, and no negative pressure should be applied during catheter insertion. Each suctioning session should last less than 15 seconds, with a 3- to 5-minute interval before the next suctioning to avoid injury to the oral mucosa or respiratory tract.