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': 'In which of the following condition gastric wash is contraindicated? \nSelect and explain. \nA. Oxalic acid, B. Sulphuric acid, C. Opiate, D. Dhatura', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The only absolute contraindication is corrosive poisoning (except carbolic acid), owing to the danger of perforation. In the following conditions stomach wash can be done by taking proper precautions: Convulsant poisons Comatose patients Volatile poisons Upper alimentary disease (e.g., esophageal varices) Marked hypothermia and hemorrhagic diathesis Ref: The Essentials of Forensic Medicine and Toxicology by KS Narayan Reddy, 27th edition, Page 453.', 'role': 'assistant'}]