system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following poison causes cherry-red -color postmoem staining?
assistant
The correct answer is  A cherry-red colouration of the skin, mucous membranes, conjunctiva, nail beds, areas of hypostasis, blood, tissues and internal organs is seen in carbon monoxide (CO) poisoning. It is associated with 30-40% COHb. Ref: The Essentials of Forensic Medicine and Toxicology by Narayan Reddy, 27th edition, Page 555.