This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lower Limb Traumatology, Subject name: Orthopaedics
[{'content': 'Babu ram 45 years male who sustained a A is stabilized according to ATLS protocols taken to emergency ward and managed by an intern and gets the X-ray done which reveals fracture in shaft of femur (S.O.F). Patient is stabilized and supplied with O2 & shifted to ward. After 4 hours of injury patient suffers from breathlessness & PaO2 56 mmHg, Then the patient is shifted to ICU; ABG done and supplemented with O2. What do you expect? \nSelect and explain. \nA. ARDS, B. Cardiac arrest, C. Acute bronchial asthma, D. Fat embolism syndrome', 'role': 'user'}, {'content': "Answer: A \nExplanation: Even though all the above-mentioned clinical features suggest fat embolism syndrome. It takes at least 48 hours for thromboembolic phenomena to occur Hence, it is not a Fatty embolism So fracture in S.O.F, Breathlessness, Pao2 <60mmHg - all points to ARDS by eliminating other option Fat embolism syndrome: FAT EMBOLISM after fracture S.O.F Mn- Fracture femur shaft + foy-eight hours = Fat embolism Diagnostic criteria for fat embolism-Gurd's Criteria", 'role': 'assistant'}]