The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A patient had a femur fracture for which internal fixation was done. Two days later, the patient developed sudden onset shoness of breath with low-grade fever. What is the likely cause?   (A) Pneumothorax   (B) Fat embolism   (C) Pleural effusion   (D) Congestive hea failure
['(B) Fat embolism <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Pneumothorax \n (B) Fat embolism \n (C) Pleural effusion \n (D) Congestive hea failure <> possible answers', '  A patient had a femur fracture for which internal fixation was done. Two days later, the patient developed sudden onset shoness of breath with low-grade fever. What is the likely cause? <> context@']