<prompt> Diffusion of oxygen at the tissue level is affected in all the following poisoning except -Carbon monoxideCuranePhosgeneCyanides  <response>: Peripheral nerve poison, e.g. curare Asphyxiants, e.g. carbon monoxide,CO2,H2S,phosgenewar gas,cyanides REF;THE SYNOPSIS OF FORENSIC MEDICINE:KS NARAYANA REDDY;28th EDITION;PAGE NO 361 