This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Orthopaedics
[{'content': 'Carpel tunnel syndrome is due to compression of \nSelect and explain. \nA. Radial nerve, B. Ulnar nerve, C. Palmar branch of the ulnar nerve, D. Median nerve', 'role': 'user'}, {'content': 'Answer: D \nExplanation: (D) Median nerve. # CARPAL TUNNEL SYNDROME: This is a syndrome characterised by the compression of the median nerve as it passes beneath the flexor retinaculum.> Causes: Any space occupying lesion of the carpal tunnel may be responsible.> Clinical features: This patient is generally a middle aged woman complaining of tingling, numbness or discomfort in the thumb and radial one and a half fingers i.e., in the median nerve distribution.> The tingling is more prominent during sleep. There is a feeling of clumsiness in carrying out fine movements.> On examination, features of low median nerve compression are found.> Nerve conduction studies show delayed or absent conduction of impulses in the median nerve across the wrist. Treatment is by dividing the flexor retinaculum, and thus decompress the nerve.', 'role': 'assistant'}]