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: Forensic Medicine
[{'content': 'Tardieu spots are seen in? \nSelect and explain. \nA. Cyanide poisoning, B. Mechanical asphyxia, C. Cobra bite, D. Organophosphate poisoning', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tardieu spots or petechial haemorrhages are pinhead size bleeding spots occurring as a result of rupture of venules and are most commonly seen in sclera, conjunctiva or on serous membranes. Their distribution lies above the level of obstruction. A hand lens is used to identify petechial haemorrhages. It is seen in case of mechanical asphyxia. Ref: Textbook of forensic medicine and toxicology by V.V Pillay, 15th edition, P-275.', 'role': 'assistant'}]