A nurse is teaching a client who has a prescription of a nasogastric tube (NG) to treat a pyloric obstruction.Which of the following rationales for the use of the nasogastric tube should the nurse include in the teaching?

Choice A rationaleA pyloric obstruction is a blockage at the outlet of the stomach, preventing gastric contents from emptying into the duodenum. A nasogastric tube is inserted to decompress the stomach by removing accumulated fluids and gases, relieving pressure and distension.Choice B rationaleWhile a nasogastric tube can be used for enteral feeding in some situations, it is not the primary rationale for its use in a pyloric obstruction. The obstruction would prevent the delivery of nutrients into the small intestine for absorption.Choice C rationaleMedications can be administered through a nasogastric tube, but this is a secondary use in the context of a pyloric obstruction. The primary goal is to relieve the obstruction's effects by decompression.Choice D rationaleDetermining the pH of gastric secretions can be done via a nasogastric tube, but this is a diagnostic measure and not the primary therapeutic rationale for its use in treating a pyloric obstruction. Decompression is the priority.