What is the maximum negative pressure recommended for suctioning a 4-year-old patient with a 5.0 mm endotracheal tube?

The maximum negative pressure recommended for suctioning a pediatric patient, such as a 4-year-old with a 5.0 mm endotracheal tube, is generally set to provide effective suctioning without causing trauma to the airways or other complications. The use of -80 mm Hg is generally considered safe and effective for children in this age group and with this size of endotracheal tube.

Suctioning at higher pressures, such as -100 mm Hg or beyond, can increase the risk of damaging the mucosa of the trachea and cause irritation or bleeding. The guidelines emphasize maintaining a lower suction pressure to ensure patient safety while still being effective in clearing secretions. Therefore, employing a maximum negative pressure of -80 mm Hg aligns with the recommended practice for pediatric suctioning. This approach helps avoid unnecessary complications while effectively managing airway clearance.