<prompt> Cherry red hypostasis is seen in -Dhatura poisoningCyanide poisoningCarbon monoxide poisoningAniline poisoning  <response>: CO affinity to myoglobin is about 40 times greater than oxygen affinity to haemoglobin is 200-300 times greater. It acts as a chemical asphyxiant by reducing the oxygen carrying capacity of blood and produces death due to anaemic anoxia. POSTMOEM CHANGES A cherry red coloration of skin,mucus membranes, conjunctiva,nail beds, areas of hypostasis, blood ,tissue and internal organs is seen in 15-20 cases It is associated with 30-40 COHb This cherry red discolouration changes to dark green and then to brown. Ref: K.S.Narayan Reddys Synopsis of Forensic Medicine and Toxicology, 29th edition, Chapter 35, page- 347. 