This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
[{'content': 'Kehr&;s sign is seen in- \nSelect and explain. \nA. Splenic trauma, B. Hepatic trauma, C. Renal trauma, D. Paccreatic trauma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Splenic trauma o In splenic rupture the pain may be referred to the tip of the left shoulder. o This is known as Kehr's sign. o It occurs due to irritation of the undersurface of the diaphragm with blood and the pain is referred to the shoulder through the affected fibres of phrenic nerve (C4 and C5). o Kehr's sign can be elicited by bimanual compression of the left upper quadrant after the patient has been in Trendelenburg's position for about 10 minutes prior to the maneuver.", 'role': 'assistant'}]