What clinical sign indicates appendicitis when there is severe right lower quadrant pain with rebound tenderness?

What clinical sign indicates appendicitis when there is severe right lower quadrant pain with rebound tenderness?

• A. Blumberg's sign
• B. Psoas sign
• C. McBurney's sign
• D. Murphy's sign

Answer: (C)

McBurney's sign is classically associated with appendicitis and is characterized by tenderness located at approximately one-third of the distance from the anterior superior iliac spine to the umbilicus, which corresponds to the typical location of the appendix in the right lower quadrant. When a patient presents with severe right lower quadrant pain and rebound tenderness, this often indicates irritation of the peritoneum due to appendicitis. The presence of McBurney's sign helps to localize the pain specifically to the area of the appendix, providing a strong clinical indication of an underlying appendicitis. While other signs mentioned may indicate various abdominal pathologies, McBurney's sign is particularly associated with acute appendicitis, emphasizing the importance of this clinical finding in diagnosing the condition. The tenderness and rebound tenderness are indicative of peritoneal irritation, which aligns with appendicitis as the most likely cause of the patient's symptoms.

McBurney's sign is classically associated with appendicitis and is characterized by tenderness located at approximately one-third of the distance from the anterior superior iliac spine to the umbilicus, which corresponds to the typical location of the appendix in the right lower quadrant. When a patient presents with severe right lower quadrant pain and rebound tenderness, this often indicates irritation of the peritoneum due to appendicitis. The presence of McBurney's sign helps to localize the pain specifically to the area of the appendix, providing a strong clinical indication of an underlying appendicitis.

While other signs mentioned may indicate various abdominal pathologies, McBurney's sign is particularly associated with acute appendicitis, emphasizing the importance of this clinical finding in diagnosing the condition. The tenderness and rebound tenderness are indicative of peritoneal irritation, which aligns with appendicitis as the most likely cause of the patient's symptoms.