title: An unusual case of unconsciousness.
mesh_terms: D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D006935:Hypercapnia / Q000150:complications*; D006973:Hypertension / Q000150:complications / Q000188:drug therapy; D008297:Male; D008736:Methyclothiazide / Q000627:therapeutic use; D008750:Methyldopa / Q000627:therapeutic use; D008875:Middle Aged; D012121:Respiration, Artificial; D014474:Unconsciousness / Q000209:etiology*
chemical_list: D002245:Carbon Dioxide; D008750:Methyldopa; D008736:Methyclothiazide