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: Unknown
[{'content': 'The following are due to toxic exposure to lead except \nSelect and explain. \nA. Cranial palsy, B. Wrist drop, C. Blue line in gums, D. Insomnia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (Refer: Rajesh Bardale - Principles of Forensic medicine & Toxicology, 1st edition, pg no: 459)\nLead poisoning\n\nThe dangers of lead toxicity, the clinical manifestations of which are termed Plumbism exposed to lead chiefly via paints, cans, plumbing fixtures, and leaded gasoline.\n\n\nSymptomatic lead poisoning is characterized by\n\n\nAbdominal pain and irritability followed by\nLethargy, Insomnia\nAnorexia,\nPallor (resulting from anemia), ataxia, and slurred speech.\nConvulsions, coma, and death due to generalized cerebral edema and renal failure occur in the most severe cases.\nAnemia, punctuate basophilia, constipation are seen.\xa0\n\n\nPunctuate basophilia is early manifestation of chronic lead poisoning.\nA "lead line" appears at the gingiva-tooth border after prolonged high-level exposure. (Blue line)\xa0\xa0 Burtonian line\nTreatment for lead toxicity entails the use of chelating agents, principally Edetate calcium disodium (Ca EDTA), dimercaprol, penicillamine, and succimer, which is given orally and has relatively few side effects.', 'role': 'assistant'}]