#a A Nasogastric (NG) tube is a soft, flexible tube that is inserted through the nose, passes through the nasopharynx and esophagus, and reaches the stomach. It is used for both diagnostic and therapeutic purposes. Therapeutically, it helps in feeding patients who cannot swallow, giving medications, gastric decompression to relieve abdominal distension, and performing gastric lavage in cases of poisoning. Diagnostically, it can be used to obtain gastric contents or detect gastrointestinal bleedi