What is the primary purpose of a nasogastric tube?

The primary purpose of a nasogastric tube is to provide nutritional support or remove gastric contents. This tube, which is inserted through the nose and goes down into the stomach, enables healthcare providers to either deliver liquid nutrition, hydration, or medications directly to patients who cannot eat by mouth, or it allows for the removal of gastric secretions, which can be crucial in managing conditions like bowel obstruction or postoperative care.

While administering medication directly into the stomach is a secondary function of the nasogastric tube, it is not the primary purpose. Similarly, facilitating respiratory assistance and monitoring blood glucose levels do not relate to the function of a nasogastric tube, as these require different types of equipment and interventions entirely.