A client has a prescription for the insertion of a nasogastric tube to low intermittent suction. When inserting the nasogastric tube, the nurse observes an immediate return of "coffee ground" drainage. Which action should the nurse implement?

A. Connect the nasogastric tube to suction as prescribed: "Coffee ground" drainage can indicate the presence of blood in the stomach, which requires further assessment before initiating suction. B. Clamp the nasogastric tube and contact the healthcare provider: Clamping the tube helps prevent further aspiration of gastric contents, and contacting the healthcare provider is necessary for further evaluation and instructions. C. Immediately remove and then reinsert the nasogastric tube: While removing and reinserting the tube may be necessary, contacting the healthcare provider for guidance is the priority. D. Connect the nasogastric tube to high continuous suction: Initiating suction without further evaluation can exacerbate bleeding and is not appropriate without guidance from the healthcare provider.