During the show's run, it was credited with actually saving lives. There were many news reports over the years of children and adults saving people using techniques demonstrated in the series. However in later seasons, the series posted a disclaimer in the credits noting that the medical techniques demonstrated should only be performed by people with proper formal training in them.
The Harbor UCLA Medical Center served as Rampart Emergency Hospital in the series. The hospital is located in Torrance, California. 1000 West Carson Street. This is appropriate, as this hospital (then known as Harbor General) served as the initial training facility for the Los Angeles County Paramedic Training Program.
Squad 51, the Dodge utility truck, is on display at the Peterson Automotive Museum in Los Angeles, California.
Mike Stoker, who drove the engine, wasn't so much an actor qualified to drive a fire engine, as a firefighter with both an "engineer" rating and a SAG card.
John Gage was based on the real firefighter turned paramedic Jim Page, who helped create the firefighter/paramedic program for LAFD. Executive Producer Jack Webb wanted to name the character after Page, but he declined. Jim Page died on 4 September 2004 and Randolph Mantooth was one of the speakers at his memorial.
Fire Station 127, which was used as Fire Station 51 for the show, has been named the "Robert A. Cinader Memorial Fire Station" in honor of Robert A. Cinader, executive producer of the show.
'Emergency!' was truly a family affair because Julie London was at the time married to co-star Bobby Troup and had been hired by her previous husband Jack Webb who was the series' creator and producer.
Station 51 is an actual operating Los Angeles County Fire Station at Universal Studios in Studio City, CA. It is complete with Engine and Squad 51.
The radio call sign KMG365, which is said whenever Station 51 is responding to a call, is still a valid FCC call sign licensed to the LACoFD. It appears on the station patches for the crew at Station 127, which was used as the filming location for Station 51.
The role of the dispatcher was "played" by real-life LACoFD dispatcher Sam Lanier who had over 18 years' service to the department. He died on May 21, 1997.
In preparation for their roles, Mantooth and Kevin Tighe took all of the paramedic training. In fact, save for the written final exam, they were fully qualified to serve as Los Angeles County paramedics.
During his recurring role on Emergency!, the character Officer Vince played by Vince Howard, rotated from being a member of the Los Angeles Police Department and the Los Angeles Sheriff’s Department.
When producer Jack Webb approached Robert Fuller, for his first choice, to play Dr. Kelly Brackett, he turned it down, but Webb strongly insisted Fuller play the role.
The series originated when producer Robert A. Cinader was in the Los Angeles area researching for a new medical drama series. There, he learned of the fledgling paramedic program being tested in the Los Angeles County Fire Department. Upon learning the full details of the program and the nature of their dispatches, Cinader immediately concluded the adventures of such a team of special firefighters would be excellent material for a TV series.
The series is popularly credited for encouraging the widespread adoption of paramedic programs across North America.
Julie London and Bobby Troup had been best friends with Robert Fuller for many years, long before the show had started.
Paramedics Gage and Desoto sometimes crossed paths with Reed and Malloy from Adam-12, another Jack Webb show, at Rampart Hospital. In “Emergency!: Hang-Up”, the firefighters are watching “Adam-12: Ambush” when they're dispatched to a call. Throughout the rest of the show, the firemen are on the phone to anyone, trying to find out what they missed.
Randolph Mantooth was the producers' first choice for Johnny Gage, but politely turned it down, hence, Webb had talked him into playing this role.
During its 8 year run, Julie London, Bobby Troup, Randolph Mantooth and Kevin Tighe, are the only actors to appear in every episode.