A nurse is caring for a client who underwent abdominal surgery 48 hours ago and is now experiencing signs of paralytic ileus. The client reports severe abdominal distension, nausea, and has not passed flatus or had a bowel movement since surgery. Which nursing intervention should the nurse implement first?

Nasogastric tube insertion is the priority for paralytic ileus to decompress the stomach and prevent aspiration. Other interventions are secondary or contraindicated until decompression is achieved.

Clinical Context
This client is in the early postoperative phase following abdominal surgery and is exhibiting classic signs of paralytic ileus: severe abdominal distension, nausea, and an absence of flatus or bowel movement for 48 hours. In this situation, the gastrointestinal tract is functionally obstructed without a mechanical blockage, meaning peristalsis has ceased. This leads to the accumulation of gas and fluid within the stomach and intestines, causing progressive distension. The primary, immediate danger in this scenario is not simply discomfort, but the high risk of aspiration of accumulated gastric contents.

Rationale for the Correct Answer: Option 1
Inserting a nasogastric (NG) tube for decompression is the priority intervention. The pathophysiological basis for this lies in the loss of coordinated gastric and small bowel motility. When peristalsis stops, swallowed air and gastric secretions collect in the stomach, increasing intragastric pressure. This places the client at imminent risk for vomiting and subsequent aspiration, which can lead to chemical pneumonitis or aspiration pneumonia—a life-threatening complication. Decompressing the stomach via an NG tube immediately removes this accumulated fluid and air, directly mitigating the risk of aspiration. This aligns with the traditional rationale for NG tube use, which has been to prevent gastric distension and its sequelae in the setting of postoperative ileus ^[1]. While current evidence questions the routine prophylactic use of NG tubes in all abdominal surgeries, the client in this scenario already has an established ileus with severe distension, making therapeutic decompression the most critical and time-sensitive action.

Analysis of Incorrect Options
- Option 2: Administer the prescribed antiemetic medication. While the client is nauseated, administering an antiemetic treats a symptom, not the underlying dangerous pathology. In the context of a non-functioning, distended bowel, the medication may not be effectively absorbed if given orally, and it does nothing to remove the existing accumulation of gastric contents that poses the aspiration risk. Symptom management is secondary to airway protection.
- Option 3: Encourage early ambulation. Ambulation is an excellent, evidence-based intervention to help stimulate the return of bowel motility and resolve an ileus. However, its effect is not immediate. The client’s current state of severe distension and nausea presents a more urgent threat—aspiration—that must be addressed first. Ambulation is an appropriate intervention to implement after the immediate risk is controlled.
- Option 4: Increase oral fluid intake. This intervention is contraindicated in a client with a suspected paralytic ileus. The GI tract is not moving contents forward; adding more fluid orally will only worsen gastric distension, increase nausea, and dramatically elevate the risk of vomiting and aspiration. The priority is to keep the stomach empty, not to add to its contents.

Connecting Evidence to Clinical Judgment
The decision-making process here is a direct application of the airway, breathing, and circulation (ABC) priority framework, where the risk of aspiration constitutes an immediate airway threat. The provided evidence offers a nuanced view of NG tube use. One study investigates the necessity of routine NG decompression after surgery for a perforated peptic ulcer, suggesting it may not be universally required ^[1]. This supports the modern trend of selective rather than routine NG tube placement. However, the client in this question is not in a routine postoperative state; they have developed a complication. The clinical presentation of severe distension and absent bowel sounds represents a therapeutic indication for NG tube placement to manage the complication. Another study explores methods like gum chewing and the Paula method to promote GI reactivation after cesarean delivery, highlighting nursing interventions to prevent ileus . These are proactive and restorative measures. The nurse must distinguish between interventions that prevent or resolve an ileus (like ambulation) and the emergency intervention required to manage a dangerous complication of an existing ileus (like NG decompression for aspiration prevention). The client’s immediate physiological need for airway protection overrides the need for comfort or motility stimulation.