Goof: When Clemente jumps on the hood of the cab and the view angle is from the cab's rear, one can see that the cab's windshield is broken. However, Clemente doesn't actually smash it until the next shot.
This is the first time we see Kerry walking without her crutch.
At the drug-testing clinic, the nurse asks Dr. Clemente for a mid-stream sample. He promptly proceeds to give her a full-stream sample. Obviously, he would have known better, and she should have objected as well.
Ray's patient, Mr. Lemoyne, was based on the 1980s celebrity Mr. T.
Goof: In the scene where Carter and Dakarai are in the Jeep looking for the rape victim's husband and the police stop them, two camera angles are used, and a continuity error is revealed; all the shots from the camera filming behind Carter show him holding up his ID badge, but the shots from the camera shooting Carter's front show the same hand resting on the door of the Jeep.
Goof: In the 2002 flashback, the ER layout is the same as it has been this season. However, the current configuration came about in the Season 10 premiere "Now What?", which took place in 2003.
Goof: During the 2002 flashback, which takes place at the time of Mark Greene's funeral, Anspaugh is shown presenting Lennox his award, and Romano and Chen are mentioned as working in the ER. However, Mark's funeral scene in the Season 8 episode "On the Beach shows the three in attendance at the cemetery.
Goof: Abby could not have been a first year med student in 1999, because she was a third year when she joined the series in the Season 6 episode "Abby Road", which takes place in February 2000.
Goof: Luka states that identical twins run in his family, but in fact there is no hereditary trait that influences a predisposition to having identical twins. The causes of monozygotic twinning (when a single fertilized egg splits into two or more embryos) is not known; technically it's a malfunction of the normal development process. Although there may be a high incidence of identical twins in some families, it is due to chance. Having fraternal twins, on the other hand, can run in the family, but on the mother's side only, as dizygotic twinning is the result of inheriting a gene for hyperovulation, which increases the chance of two or more eggs being released and subsequently fertilized.
Title This episode's title comes from a conversation between Abby and Luka about whether or not to keep the baby. During the scene, Abby points out that she is 37-years old and declares "if not now, when?".
Abby gives Luka a snow globe for Christmas. In the Season 9 episode "Hindsight," Luka is Abby's secret Santa and gives her a snow globe.
With this episode, Dr. Luka Kovac becomes the Chief of Emergency Medicine. Although Kovac has risen from most junior to most senior "attending," this is his first opportunity for promotion. He is the only long-term character on staff who completed all of his training at another hospital and was hired as an attending physician.
Goof: When Luka throws Abby her underwear, it appears black, but when the camera goes back to Abby, it seems to have changed to white.
Goof: In the previous episode, "Human Shield," Luka's hair is significantly longer, despite the negligible time differences between the two episodes.
A bag just like the one you see Eve carrying before she leaves for the airport is later seen at the scene of the crash, leading you to believe that Eve may have been on the plane that crashed.
Goof: When Sidney arrives at the hospital, the medic says she is 8 years old, but later in the episode they say that she is 10 years old.
Lukaism: Kovac tells Weaver to put his name "into the mixture" (mix) as a candidate for the position of Chief of Emergency Medicine.
Ray Barnett's band is called Skunk Hollow.
In this episode we find out where Dr. Lewis has disappeared to (her last appearance was in this season'e premiere, "Cañon City"); Weaver mentions that Susan has taken a tenure-track position in Iowa City, and has left for good.
In this episode we learn that Dr. Dubenko's first name is Lucien.