I'm new to the community of monitoring emergency operations. While I've gotten down to the basics, I'm still left with questions. How,if anyway, do ambulances communicate with the receiving hospital? Is it like I've seen in ER, "We've got a gunshot victim with a sucking chest wound en route!", or is it just arrive and go from there? Also, does anyone know of a set terminology that is used by Harford County Fire/EMS, such as " Company 4,10-99 a driver,code 3"? Any information would be great. Thanks.