A 19-year-old woman presents with a 4-hour history of acute right upper quadrant abdominal pain. She has a body mass

A 19-year-old woman presents with a 4-hour history of acute right upper quadrant abdominal pain. She has a body mass index of 31.2, but is otherwise healthy. The pain started shortly after she ate the previous evening. Her pain radiates to her right scapula and she has had nausea and vomiting for the last 2 hours. She is very uncomfortable and cannot find a position of comfort. Which of the following special tests is most likely to be positive? McBurney’s point tenderness. Rovsing’s sign. Murphy’s sign. Psoas sign. Obturator sign.