# Which assessment finding would be most characteristic of acute appendicitis?

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## 문제

Which assessment finding would be most characteristic of acute appendicitis?

## 보기

1. Cramping pain that improves with movement and walking
2. McBurnie point press and repulsion **✔ 정답**
3. Left lower quadrant pain that radiates to the back
4. Diffuse abdominal pain that decreases when lying supine

**정답: 2**

## 해설

McBurney's point tenderness with rebound pain is the classic finding for acute appendicitis, indicating peritoneal irritation. Other options describe pain patterns not typical for appendicitis.

## 심화 해설

Understanding the Clinical Presentation of Acute Appendicitis

The hallmark of acute appendicitis is localized peritoneal inflammation. When the inflamed appendix irritates the parietal peritoneum, it produces a specific physical examination finding known as rebound tenderness. This is clinically assessed at McBurney's point, which is located one-third of the distance from the right anterior superior iliac spine to the umbilicus. The term "press and repulsion" describes the maneuver where the examiner slowly presses down on this point and then quickly releases the pressure. The sudden release—not the initial pressure—elicits a sharp, severe pain. This finding, also called Blumberg's sign, is a critical indicator of peritoneal irritation and is the most characteristic assessment finding for acute appendicitis among the options provided.

The other options describe pain patterns that are inconsistent with the classic progression of appendicitis. Initially, appendicitis may present with vague, diffuse periumbilical pain due to visceral distension, but as inflammation spreads to the parietal peritoneum, the pain localizes to the right lower quadrant and becomes somatic, constant, and aggravated by movement or coughing. Therefore, cramping pain that improves with movement (Option 1) and diffuse pain that decreases when lying supine (Option 4) are not characteristic. While the referenced case reports highlight that atypical presentations can occur—such as right lower quadrant pain from gallbladder torsion mimicking appendicitis [2], or the extremely rare occurrence of painless appendicitis [3]—the NCLEX-RN examination focuses on the most typical and high-yield presentation. Left lower quadrant pain radiating to the back (Option 3) is more suggestive of other conditions, such as diverticulitis or pancreatitis, and does not align with the anatomical location of the appendix. The automated extraction of clinical signs and symptoms from clinical text, as explored in the literature, reinforces that specific physical exam findings like rebound tenderness are key data points for building accurate predictive models for conditions like appendicitis [1].References (research sources)

- [1]Large Language Model Automated Extraction of Clinical Signs and Symptoms From Emergency Department Reports for Machine Learning Prediction Models: Development and Validation Study.Research articleSchipper A, Belgers P, O'Connor RD, van de Wouw L, Builtjes L, Bosma JS, Kusters R, Kurstjens S, Rutten M, van Ginneken B. (2026) · DOI: 10.2196/81500

- [2]Two cases of gallbladder torsion presenting with right lower quadrant pain: Clinical and imaging characteristics.Research articleLiu XW, Liang JQ, Wu YY, Lei N. (2025) · DOI: 10.1097/md.0000000000045535

- [3]Painless Appendicitis: A Peculiar Surgical Case of Acute Granulomatous Appendicitis.Research articleKaragianni C, Barrick R, Shamma FT, Patel PK. (2025) · DOI: 10.7759/cureus.95073

## 임상 시나리오

Assessing for Acute AppendicitisRecognizing Peritoneal Signs at the Bedside
The most characteristic finding is rebound tenderness at McBurney's point. Palpate deeply and then quickly withdraw your hand. Sharp pain on release indicates peritoneal irritation.

Pain typically migrates from the periumbilical area (visceral pain) to the right lower quadrant (somatic pain). Patients often lie still with their right hip flexed to relieve tension.

CautionDo not repeatedly check for rebound tenderness as it causes severe pain. Movement, coughing, or jarring the bed will aggravate the pain, not relieve it.

## 핵심 개념

- **McBurney's Point** — An anatomical landmark located one-third of the distance from the right anterior superior iliac spine to the umbilicus, corresponding to the most common location of the appendix.
- **Rebound Tenderness (Blumberg's Sign)** — A clinical sign of peritoneal irritation where sharp pain is elicited upon rapid release of deep palpation pressure, not during the initial compression.
- **Parietal Peritoneum** — The outer layer of the peritoneum lining the abdominal wall; its irritation causes well-localized, sharp somatic pain.
- **Visceral Pain** — A dull, poorly localized pain arising from distension or spasm of a hollow organ, often felt in the midline early in appendicitis.
- **Somatic Pain** — Sharp, well-localized pain resulting from direct irritation of the parietal peritoneum, characteristic of later-stage appendicitis.

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