This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Peripheral nerve injuries, Subject name: Orthopaedics
[{'content': "A 56-years old female presents with nocturnal pain in the right thumb, index and middle fingers for the past 3 months. All of the provocative tests can be performed except - \nSelect and explain. \nA. Finkelstein's test, B. Tinel sign, C. Phalen's test, D. Tourniquet test", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Finkelstein&;s test is for de Quervain&;s tenosynovitis - it is a condition characterised by pain & swelling over styloid process ,it results from inflammation of common sheath of abductor pollicis longus & extensor pollicis brevis tendons . on examination, the tenderness is localised to the radial styloid process .pain is aggravated by adducting the thumb across the palm & forcing detion against resistance( finkelstein&;s test) .There may be palpable thickening of the sheath. REF:essential ohopedics, 9th edition ,Maheshwari, pg.no.303', 'role': 'assistant'}]