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: Surgery
[{'content': 'Which one of the following causes intestinal pseudo obstruction? \nSelect and explain. \nA. Hypothyroidism, B. Tricyclic antidepressant, C. Parkinsonism, D. All the above', 'role': 'user'}, {'content': "Answer: D \nExplanation: Intestinal pseudo obstruction is caused by the following 1) Disorders of the nervous system (Familial autonomic dysfunction, Hirschsprung disease, Chagas disease) 2) Diseases affecting muscles and nerves (Muscular dystrophy, SLE, Ehlers-Danlos syndrome, hypokalemia) 3) Disorders of the endocrine system (DM, Hypothyroidism, Hyperparathyroidism), and 4) Medication (Narcotics, Laxatives, Tricyclic antidepressants, Phenothiazines).Ogilive's syndrome is acute intestinal pseudo obstruction.", 'role': 'assistant'}]