JohnMarcson said:Here a MICU is a unit with a nurse run by a hospital that does inter-facility transfers.
At my old job, those were just called the "PHRN Truck" (Pre-Hospital Registered Nurse). I worked on them all the time, usually ended up being the most fun calls.
Here, it all depends on the county. For instance, Chester County ALS units are called MICU's (aka, "MICU ###"), Montgomery and Berks Counties they are referred to as "Medic ###" on the radio.