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: Psychiatry
[{'content': 'A reduction in the CSF 5-HIAA (Hydroxyindoleacetic Acid) is associated with all the following, EXCEPT: \nSelect and explain. \nA. Suicide, B. OCD, C. Depression, D. Violence', 'role': 'user'}, {'content': "Answer: B \nExplanation: The CSF levels of 5-HIAA (Hydroxyindoleacetic Acid) is low in patients who committed suicide, in depression and violence. It is considered to be associated with poor impulse control. It can be used to predict suicide. It is not known to be reduced in OCD. Ref: Kaplan & Sadock's Synopsis of Psychiatry, By Benjamin J Sadock, M.D., Harold I. Kaplan, Virginia A Sadock, M.D, 10th Edition, Page : 265", 'role': 'assistant'}]