<prompt> Color of postmoem staining in cyanide poisoning isDeep blueBright redDark brownBluish green  <response>: Color of postmoem staining Cause of death color of PMS Cyanides bright redoxygen Hbu Carbon monoxide cherry redcarboxy Hbu Carbon dioxide deep bluereduced Hbu Hydrogen sulphide bluish greensulphmet Hbu Phosphorus, copper Dark brown Opiates black Nitrates, aniline, potassium chlorate, nitrobenzene, potassium bicarbonate chocolate brown, or coffee brownmetHb Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 24 