Emergency Medical Hologram

The **Emergency Medical Hologram** or **EMH** is a sophisticated holographic program used upon Starfleet starships and facilities in the late 24th century to assist medical staff in times of emergency. The program whose formal name is **EMH Program AK-1 Diagnostic and Surgical Subroutine Omega-323** was developed by Doctor Lewis Zimmerman on Jupiter Station.

EMHs are programmed with five million possible treatments from the collective information of 2000 medical references and the experience of 47 individual medical officers, as well as having adaptive programming for situations outside of those in their database. EMHs are only meant to be used a temporary measure to assist existing medical staff, or in extreme cases, to temporarily replace them until a new doctor is assigned.

## 1.Mark I

Work on the EMH program began as far back as the year 2360 which was conducted by Starfleet Medical, though information on it was known only to a few individuals.

By the time the holographic matrix was completed in 2370, it had to have official approval by Leonard McCoy.

The Mark I EMH was modelled on Doctor Zimmerman, in both its physical characteristics and personality. This was considered a flaw in the program's design by many Starfleet medical personnel, including Doctor Elizabeth Lense of the USS *Lexington*.

Lense later came to appreciate the Mark I EMH's lack of simulated emotionalism.

Starfleet thought the Mark I's personality was too abrasive.

Given these reactions, the Mark I was quickly replaced on many ships by newer versions.

The existing Mark I EMHs were reprogrammed for more menial tasks, such as scrubbing plasma conduits and mining dilithium ore.

Several Mark I EMHs continued to serve in their intended roles, including "The Doctor" of the USS *Voyager* and the EMH on the USS *Equinox*: both vessels being stranded in the Delta Quadrant, did not, of course, have access to upgraded versions.

## 2.Mark II

The **EMH Mark II** was programmed with new physical characteristics and to be a much more polite and friendly individual, although some felt it was too skittish. New starship classes such as the *Prometheus*-class were fitted with shipwide holographic projection systems so that EMHs could attend emergencies outside of sickbay.

## 3.**Mark III**

The **EMH Mark III** came into general use during the height of the Dominion War, and included stringent security protocols. It also featured an improvement of its personality subroutine over the previous models. However, following the end of the war, these security measures came to be viewed as a hindrance to effective caregiving.

 Temporal Investigation Ships

## 4.**Mark IV(LONG TERM MEDICAL HOLOGRAM)**

The **EMH Mark IV** came into use in early 2376, replacing the Mark III.

## 5.**Mark V**

The **EMH Mark V**  This version had pale, blueish skin and a personality similar to that of the Mark I.

## 6. Mark VI

Resembling a Vulcan with silver hair, this EMH, claims to have a "personality matrix [that] combines qualities of more than twenty physicians, scientists, and counselors – including  Beverly Crusher of Starfleet Medical, Ambassador Spock, and Ghee P'Trell of Andoria.

## 7. Mark VII

EMH Mark VII is based off of the Successful parts of all the previous EMH and is designed to look Like a a mid 30 year old female.

## 8. Mark VIII

The EMH Mark VII was turned online in 2378. this version looks like Leonard McCoy, This program had his same personality.

## 9.**Mark IX**

The **EMH Mark IX** was online by 2380. This version looked like a young, female with strawberry-blonde hair, and could replicate herself as necessary. A Mark IX nicknamed "Nina" was active aboard the *Enterprise* in mid 2380.

Following a refit in early 2386, the USS *Titan* was equipped with a Mark IX.