What is the purpose of leaving the end of the orogastric tube open?

Leaving the end of the orogastric tube open serves as a vent for air, which is vital for preventing pressure build-up within the stomach. When an orogastric tube is in use, especially in neonates, it is necessary to allow for air to escape and to ensure that the tube functions effectively. This venting minimizes the risk of gastric distension, which can lead to discomfort and potential complications for the infant, such as respiratory distress due to increased intra-abdominal pressure.

While gastric drainage is an important function of an orogastric tube, it does not specifically pertain to the purpose of leaving the end open; the actual drainage occurs through the tube itself, and not necessarily through an open end. Administering medications and delivering oxygen are additional tasks that may involve the tube, but these activities typically require a closed system or specific connections and would not rely on an open end for their function.