At one point Gallant states a patient's temperature as being 39.8 degrees. He uses the Celsius scale, which is quite unusual, as temperature readings on the series are consistently given using the Fahrenheit scale.
While in the hotel room with her brother Eric, Abby gives him a red and white shirt that Carter sent. On the back of the shirt is the word "Scrubs." That is the name of County General's ER softball team, introduced for the first time in the Season 3 episode "Dr Carter, I Presume."
This episode uses a theatrical device called "breaking the fourth wall" in the scenes where Luka speaks directly to the camera, as though personally addressing the audience. This also happens with Dr. Lewis in the Season 2 episode "Take These Broken Wings."
Goof: A TV reporter states that the suspects in the shooting at Doc Magoos are involved in a high speed chase on I-40. However, I-40 does not go through Chicago, or even through the state of Illinois; it is an east-west freeway that runs though the southern United States. I-40 was also referred to in one of this season's earlier episodes, "A Saint in the City."
Goof: Carter refers to "...a pile-up on I-40." Interstate 40 is a major east-west freeway that passes through eight states, none of which is Illinois; it runs through the southern part of the country from the Mojave Desert at Barstow, California to the coastal city of Wilmington, Delaware.
Goof: David, the young boy who was thought to be abused, tells Weaver that he and his dad would watch Starsky & Hutch on Nick at Nite, when in actuality that particular show has never aired on Nick at Nite.
Goof: Carter brings a bag of fish 'n' chips for Abby from Brennan's. Although there are several Brennan's grills and pubs in the eastern, southern, and southwestern United States, there is not one in Chicago.
Goof: When the gunshot victim comes in, Luka says he is 16 years old. However, when he finds the eye specialist out on the golf course, Luka tells him the victim is 14.
Title: "A Hopeless Wound"
The title of this episodes is mentioned in a conversation between Corday and Romano, when Corday is operating on the man Nathan diagnosed with cellulitis, a serious bacterial skin infection. Corday tells Romano that the patient has "a hopeless wound" and will have to have his leg amputated, but that he is young and should handle a prosthetic well.
Goof: At one point when Gallant is talking to Carter he calls him Noah. Noah is the first name of the actor (Noah Wyle) that plays Carter.
Goof: In this episode, part of the "new" security agreed to is getting bulletproof glass. However, it was established in the Season 3 episode "Make a Wish" that bulletproof glass was installed as a precaution after Mark Greene was the victim of a random and brutal attack in one of the ER restrooms (this occurred in the episode,"Random Acts").
The book Chen is reading is called Bereft: A Sister's Story by Jane Bernstein.
Romano says to the nurse bringing him his food that the "prostetics department [can] come fit me for a hook." It's a nod to an upcoming episode in which Romano really does get a hook when his insurance won't cover a robotics arm.
Noah Wyle, now first in the credits, is the only member of the original cast that has been on the show since the very beginning. Sherry Stringfield was also part of the original cast, but she left the series in the Season 3 episode "Union Station." She returned in the Season 8 episode "Never Say Never," reprising her role of Dr. Susan Lewis after a five year absence.
Goof: Carter makes wisecracks about Star Wars, but then he does the iconic "live long and prosper" hand sign, which is from Star Trek.
Susan confesses to Carter that she only talked to Mark sporadically while she was away from County, but when Susan first arrived back in Chicago, Elizabeth commented to Mark about Susan's number and the city she was in showing up on the phone bill, insinuating that they actually talked quite a bit during that time.
In this episode, Carter gives Gallant a pep talk in the ambulance bay where he tells him that doctors who hold onto their feelings get sick from time to time, and that helping the patients is more important than their own feelings. This is the same speech that Mark Greene gave to Carter in the pilot episode, " 24 Hours."
In this episode we learn that Dr. Mark Greene died at 6:04 a.m.
Goof: When Kerry opens Mark's locker to clean it out, the door swings the opposite way than how it did when Mark opened it on his last day in "Orion in the Sky."
Goof: Toward the end of the episode, Susan Lewis is shown putting additional tacks on the bottom of the letter pages that are on the bulletin board. However, in the last scene, when the wind is blowing on the letter, neither the extra tacks nor the holes they would have produced are seen.