This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'A 40 year old female patient complains of breathlessness. Patient was operated for femur fracture and is pregnant (3rd trimester). Which type of embolism can most probably be present in this patient? \nSelect and explain. \nA. Fat embolism, B. Air embolism, C. Amniotic fluid embolism, D. Cholesterol embolism', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Soft\xa0 tissue\xa0crush\xa0injury\xa0or\xa0rupture\xa0of\xa0marrow\xa0vascular\xa0 sinusoids (eg, due to a long bone fracture) release microscopic\xa0fat\xa0globules\xa0into\xa0the\xa0circulation.\xa0Fat\xa0and\xa0marrow\xa0emboli are common incidental findings after vigorous cardiopulmonary resuscitation but probably are of little clinical\xa0significance.\xa0Similarly,\xa0although\xa0fat\xa0and\xa0marrow\xa0embolism occurs in some 90% of individuals with severe\xa0skeletal injuries, less than 10% show any clinical\xa0findings. However,\xa0a\xa0minority\xa0of\xa0patients\xa0develop a symptomatic fat embolism syndrome characterized by pulmonary\xa0 insufficiency,\xa0 neurologic\xa0 symptoms,\xa0anemia,\xa0thrombocytopenia, and a diffuse petechial rash that is fatal\xa0in 10% of cases.\xa0\nReference: Robbins Basic Pathology, Kumar, Abbas, Aster, Elsevier, 10th Edition, Page No: 112,113', 'role': 'assistant'}]