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': 'A factory worker presents with excessive salivation, blue line on gums, tremors, disturbed personality, insomnia and loss of appetite. Diagnosis \nSelect and explain. \nA. Arsenic poisoning, B. Lead poisoning, C. Mercury poisoning, D. Phosphorus poisoning', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (Refer: Rajesh Bardale - Principles of Forensic medicine & Toxicology, 1st edition, pg no: 458)\nMercury poisoning:\n\nChronic Poisoning:\xa0 Otherwise called as ‘Hydrargyrism’.\nMC poisonous salt of mercury is Chloride\nClassic Triad:Gingivitis, Salivation and Tremors.\nSigns & Symptoms:\n\n\nBlue lines on gums\nTremors (Danbury tremors) which starts in hands and then progresses to other parts of the body. When generalized, it is called as ‘Hatter’s Shake’, glassblowers shakes\nMost severe form called as ‘Concussio mercurialis’ where no activity is possible.\n‘Mercurial Erethism’ which occurs in worker of mirror industry where there is development of psychological symptoms\n‘Mercuria lentis’ is a peculiar eye change where brownish deposit of mercury seen on anterior lens capsule and this is due to exposure to mercury vapor. It has no effects on visual acuity\nAcrodynia ( Pink disease)\nIdiosyncratic hypersensitivity reaction, seen in children\nGeneralized erythematous, eczematous papular type of lesions mostly in hands & feet, accompanied by thickening & peeling of the skin.\n\n\nDimercaprol (BAL) is used in treatment of mercury poisoning.', 'role': 'assistant'}]