No Good Deed Goes Unpunished - S9-E13
Character mistake: Dr. Corday finishes assessing a gun shot victim, then goes to the next trauma room to assess another. The steady cam follows her. She makes sure not to contaminate her gloves on the door, opening it with her elbows, but then goes straight to touching the next victim. Of course, in real life, she'd change gloves first. The shot never changes, so there's no chance of her changing gloves off camera. (00:12:30)
A Boy Falling Out of the Sky (a.k.a. Shifts Happen) - S9-E15
Plot hole: Dr. Lewis is talking to a patient about pets, and how she is "banned from a pet store" because she isn't good with pets. She explains that the only pet she ever had was sea monkeys as a child. But, in the earlier seasons, she had a cat. We actually saw the cat at one point when her sister was staying with her and let the cat out of the apartment by accident.
Continuity mistake: The first scene shows a family climbing into a gold Volvo 240 estate car, woman driving and children in the back. The following crash scene involving the same family where the car flips and is impaled by a truck is a gold Volvo 740 estate car.
Continuity mistake: Coop (new resident) has to have a dressing put on his face while a burn victim is being treated. In a later scene, he's assisting treating another patient and the dressing is gone. But a few minutes later, the patient dies and Coop's dressing is back.
Missing (a.k.a. Mistaken Identity, a.k.a. Identity Crisis) - S10-E9
Factual error: The kid from the car accident has had an orthopedic device called a halo put onto his head in order to immobilize his head and injured spine. This item is screwed directly into the skull and is very secure. However, when the doctors are giving the boy CPR, the halo stays stationary but the child's head moves back and forth inside of it. The halo should have kept his head still, or his head would have moved only if the halo moved.
Factual error: When the psychotic vet steals an M-60 series tank and drives through Chicago to the hospital, there are several problems with the tank actions. If the vet had combat locked the hatches, the police would not have been able to open the loaders hatch to shoot him, but if it had not been locked, all the bouncing around as he rolled over cars would have bounced it open to lock in the open position. If it had been open and not locked open, it would have been visibly open (8-10 inches) but it was not during all the views on the way to the hospital. During the trip to the hospital, the main gun is in the travel lock over the rear deck, the travel lock cannot be released from inside the vehicle, and if he had ever stopped and gotten out to release it, the police would have shot him, and yet when he gets to the hospital, he can traverse the turret. And while we are talking about the turret traversing, that cannot be done from the drivers compartment, it must be done from either the commander's position or the gunner's position. When the police open the loaders hatch, they shoot straight down into the driver's compartment in the hull, but the vet would have had to be in the right side of the turret, in either the TC or Gunner seat to be traversing the turret.
Other mistake: At Abby and Neela's graduation, there are at least a hundred students graduating. How did they get from Lockhart to Rasgota in three names?
Try Carter - S11-E3
Revealing mistake: Ray Barnett is shopping down the cereal aisle and a package of brats is thrown into his hand when you can see there is nothing on the shelves other than cereal. (00:39:01)
An Intern's Guide to the Galaxy - S11-E5
Continuity mistake: When Dr. Dubenko is explaining a chemical reaction to the other doctors he starts to write on the wall. In the first shot he writes the following: 2H+ + H then the camera focuses on his audience and we hear continuing writing, then the camera cuts back to Dubenko when on the wall the following is written: 2H+ -> A. (00:24:00)
An Intern's Guide to the Galaxy - S11-E5
Continuity mistake: Near the end, when Ray asks if he can go home, we see Sam writing her number of discharged patients on the board in a close up. The camera then cuts back to the whole group and the size and style of Sam's writing changes. Most noticeable that the circle now stretches over the line between Ray and Abby's count whereas before it was in the middle of Abby's column. (00:42:50)
Audio problem: When the team is moving Mr. Metcalf to a different room, Luca says, "Let's go people. Prime the rapid infuser." Abby says, "subclavian on the right." The shot shows the a close up of the patient's face (Mr. Metcalf). Immediately, that 4-second shot with audio repeats itself, before moving on to the next. (00:12:40)
Continuity mistake: Early in this episode when Dr. Kovac is shaving in the bathroom, the shaving foam on his skin is changing during shots, most noticeably in the region of his ear. (00:02:30)
Factual error: When the woman is giving birth, they show the baby just after they finally got her out. The baby is clean, no blood and other signs of a recent birth are visible. This is especially unlikely since the doctors had to "cut her open" to liberate the baby from the birth channel.
Revealing mistake: Neela is delivering a baby. As the camera moves around a nurse to show a close up of Neela and the baby, you see her holding the "head" about a foot away from the mom and quickly moves it closer to look like it's coming out of the woman.
Cañon City - S12-E1
Continuity mistake: Sam and Luka are driving to Colorado, presumably in a hurry, to try to find her missing son, Alex. While their driving in the daytime, you can notice inconsistencies in the traffic and road. They are driving on the interstate, but getting passed up by semi trucks. The trucks are not slowly passing them either. It's almost as if they are stopped and the trucks are whirring past them. Then in one shot you see a car change to the left and start to pass, but when the camera angle changes, you see Sam passing up a semi truck at a high rate of speed. A moment later, as their still chatting, an exterior shot of the car shows them changing to the left lane to pass a truck, however the lines in the road are yellow, meaning they are not on the interstate anymore.
Other mistake: At the beginning of the episode, Abby is almost run over by a man driving an SUV. They exchange words and then Abby throws a supposedly full cup of coffee at him. The cup of coffee bounces off the seat of the man's car and it is obvious that the cup is empty.
Continuity mistake: While Pratt and Ray are giving chest compressions, the victim points to a "pain" chart and leaves a smudge of blood. But in the next shot, the blood is gone.
If Not Now - S12-E11
Factual error: The male patient tells ER doc that "Six years ago, l find out l inherited the Philadelphia chromosome. Ran on my mother's side of the family. L never knew. Screwed by genetics." The Philadelphia Chromosome, the cause of CML Leukemia, is not inherited. It occurs spontaneously in an individual, usually due to chromosome damage caused by radiation, and cannot be passed on to a person's children.
Continuity mistake: Towards the end when Abby and her mother are in the apartment talking about her leaving, Abby is holding the baby and when the camera is facing her the baby is up on her shoulder. But when the camera is to her back facing her mother the baby is down. It continues like that through the whole scene.
Status Quo - S14-E11
Continuity mistake: Sam's hand instantly changes position after a camera cut, from her chest to on her hip. This is at the start when she says, "Shower sleep - that's more my style." (00:04:00)
Answer: Take care of your dad.