This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries Around the Fore Arm & Wrist, Subject name: Orthopaedics
[{'content': "Phalen's test positive in \nSelect and explain. \nA. Ulnar bursitis, B. Tennis-elbow, C. Carpal tunnel syndrome, D. De - Quervain's disease", 'role': 'user'}, {'content': 'Answer: C \nExplanation: (Carpal tunnel syndrome) (248- Apley\'s 8th)CARPAL-TUNNEL SYNDROME - Pain & paraesthesia occurs in the distribution of the median nerve*** Common in - Menopause, RA, Pregnancy, Myxoedema* Symptoms - Wasting of the thenar muscles weakness of the thumb abduction"Phalen\'s test" - Forced palmar flexion may induce pain or tingling"Map test" - asking the patients tingling to mark out the affected area may show that it corresponds to the sensory distribution of the median nerveDe- Quervain\'s disease (Stenosing tenovaginitis) - painful thickening of the tendon sheath containing EPB and Abductor pollicis longus"Finkelstein test" - Abduction of the thumb against resistance and passive adduction of the thumb across the palm are both painful* Kanaval\'s sign is positive in tenosynovitis', 'role': 'assistant'}]