This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Limb Traumatology, Subject name: Orthopaedics
[{'content': 'Inability to touch the opposite shoulder in dislocated shoulder is known as ? \nSelect and explain. \nA. Bryant Test, B. Callaway Test, C. Dugas Test, D. Hamilton Ruler Test', 'role': 'user'}, {'content': "Answer: C \nExplanation: 1) Bryant's test - Lower level of axillary fold which can be observed from a distance in dislocated shoulder. 2) Callaway test -Circumference of axilla lengthens in dislocated shoulder. 3) Dugas test - Inability to touch the opposite shoulder in dislocated shoulder 4) Hamilton ruler test - When ruler placed on lateral epicondyle ruler touch lateral epicondyle and acromion simultaneously in dislocated shoulder.(normally it can't)", 'role': 'assistant'}]