# A 72-year-old patient with a history of chronic constipation presents to the emergency department with severe left lower quadrant abdominal pain, fever of 103.0°F (39.4°C), and vomiting. The nurse suspects acute diverticulitis. What is the most important safety measure the nurse should implement immediately?

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=540606  
> language: ko  
> subject: Adult Health

## 문제

A 72-year-old patient with a history of chronic constipation presents to the emergency department with severe left lower quadrant abdominal pain, fever of 103.0°F (39.4°C), and vomiting. The nurse suspects acute diverticulitis. What is the most important safety measure the nurse should implement immediately?

The patient reports that the pain started 2 days ago and has progressively worsened. He describes the pain as constant and cramping, rating it 8/10 on the pain scale.

## 보기

1. Administer a Fleet enema to relieve constipation
2. Keep the patient NPO (nothing by mouth) **✔ 정답**
3. Encourage increased fluid intake and high-fiber diet
4. Apply heat to the abdomen to reduce pain and inflammation

**정답: 2**

## 해설

Keeping the patient NPO is critical in acute diverticulitis to prevent bowel perforation and allow bowel rest. Other options (enema, high-fiber diet, heat) can worsen inflammation or mask complications.

## 심화 해설

Correct Answer: 2. Keep the patient NPO (nothing by mouth)

Clinical Reasoning and Safety Rationale

The patient’s presentation—severe left lower quadrant pain, high fever of 103.0°F (39.4°C), and vomiting—is highly suggestive of acute diverticulitis. In the context of an acute abdomen, the immediate safety priority is to rest the bowel and prepare for potential surgical or interventional treatment. The foundational principle is that any patient with an acute abdomen should be kept NPO until a definitive diagnosis and treatment plan are established . This prevents further stimulation of the inflamed bowel and avoids catastrophic complications if emergency surgery is required.

Why the Other Options Are Unsafe

- Option 1 (Administer a Fleet enema): This is contraindicated. In acute diverticulitis, the bowel wall is inflamed and friable due to micro- or macro-perforation. Increasing intraluminal pressure with an enema can cause a contained perforation to rupture, leading to generalized peritonitis. The source material emphasizes that the acute abdomen is a life-threatening entity requiring immediate diagnostic evaluation, not blind interventions that increase risk .

- Option 3 (Encourage increased fluid intake and high-fiber diet): While a high-fiber diet is a preventive strategy for chronic diverticulosis, it is harmful during an acute inflammatory episode. Fiber increases bowel motility and bulk, which aggravates the inflamed, narrowed colonic segment. The patient is also vomiting, making oral intake unsafe.

- Option 4 (Apply heat to the abdomen): Applying heat may seem like a comfort measure, but it can mask the progression of symptoms and does not address the underlying pathology. More critically, if a perforation or abscess is present, heat application could theoretically promote vasodilation and spread of infection. The priority is to stabilize the patient for diagnostic imaging, not to apply local treatments that obscure the clinical picture.

Pathophysiological and Clinical Correlation

The acute abdomen, as described in the supporting evidence, is characterized by the sudden onset of maximally intense abdominal pain, often with guarding and impaired general well-being . In diverticulitis, a micro-perforation of a diverticulum leads to localized inflammation and infection. The patient’s progressive, constant, cramping pain rated 8/10 and systemic signs of fever and vomiting indicate a significant inflammatory response. The source confirms that 15-20% of emergency room patients with acute abdominal pain require interventional or surgical treatment . Keeping the patient NPO is a non-negotiable first step in the structured diagnostic and treatment pathway, ensuring the patient is immediately ready for potential surgery or procedures without the risk of aspiration or further bowel contamination.

## 임상 시나리오

Immediate Nursing Safety Priority

For a patient with suspected acute diverticulitis presenting with severe pain, fever, and vomiting, the immediate safety measure is to **keep the patient NPO**. This rests the inflamed bowel, minimizes the risk of aspiration, and prepares the patient for potential emergency surgery or interventional radiology procedures. An acute abdomen protocol mandates NPO status until a definitive diagnosis is established.

Contraindicated Interventions

- **Enemas or Laxatives:** Strictly contraindicated. Increasing intraluminal pressure can convert a contained micro-perforation into a free perforation, leading to fecal peritonitis and septic shock.

- **High-Fiber Diet or Oral Intake:** Harmful during the acute phase. Fiber increases bowel motility and bulk, which aggravates the inflamed, narrowed colonic segment. Bowel rest is essential.

- **Heat Application:** Not a priority safety measure. While it may provide comfort, heat can mask evolving peritoneal signs and increase local blood flow, potentially worsening inflammation. Analgesia should be administered parenterally after assessment.

Key Clinical Assessment Findings

The classic triad of acute diverticulitis includes **left lower quadrant pain**, **fever**, and **leukocytosis**. The patient's report of constant, cramping pain rated 8/10, combined with a temperature of 103.0°F (39.4°C) and vomiting, signals a systemic inflammatory response. Nurses must monitor for signs of perforation or peritonitis, such as a rigid, board-like abdomen and rebound tenderness.

Interprofessional Management Steps

- Establish intravenous access and initiate isotonic fluid resuscitation as prescribed to manage dehydration from vomiting and NPO status.

- Administer parenteral broad-spectrum antibiotics covering gram-negative rods and anaerobes after blood cultures are obtained.

- Insert a nasogastric tube if there is persistent vomiting or abdominal distension to provide gastric decompression.

- Prepare the patient for a CT scan of the abdomen and pelvis with intravenous contrast, which is the gold standard diagnostic imaging for confirming diverticulitis and assessing for complications like abscess or perforation.

- Provide intravenous opioid analgesia for pain management, avoiding nonsteroidal anti-inflammatory drugs (NSAIDs) due to the risk of gastrointestinal bleeding and renal impairment in the setting of dehydration.

## 핵심 개념

- **Diverticulitis** — Inflammation or infection of small pouches (diverticula) that form in the lining of the digestive system, often causing severe abdominal pain, fever, and altered bowel habits.
- **NPO (Nil Per Os)** — A medical instruction meaning nothing by mouth, including food and fluids, to rest the gastrointestinal tract and prepare for potential surgery or procedures.
- **Acute Abdomen** — A sudden onset of severe abdominal pain that often requires urgent medical or surgical intervention; keeping the patient NPO is a standard initial safety measure.
- **Peritonitis** — Inflammation of the peritoneum, the thin tissue lining the inner abdominal wall and covering the abdominal organs, often caused by infection from a ruptured organ.
- **Fleet Enema** — A brand of saline laxative enema used to relieve constipation; contraindicated in acute diverticulitis due to the risk of bowel perforation from increased intraluminal pressure.

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