Continuity mistake: When Carter picks up his crutches from the floor of the lounge, his hand is near the crossbars. When he hoists himself up, the shot shows his hand near the top of the crutches.
Revealing mistake: Near the beginning of the show, Mark's father puts a bulb into an old slide projector. Then there is a small explosion with smoke and flames - watched carefully, we can see are actually coming from the other side of the projector - the flames can be seen shooting parallel and close to the floor, which wouldn't have happened if the explosion actually came from the projector.
Continuity mistake: When Carol and Carter are discussing the overdose patient with nurse Dory, Carter's crutches change position and then return to their original position, even though no one adjusted them.
Continuity mistake: When Carter leans his crutches against the lockers in the lounge, we can see two pictures taped to his locker. However, after he picks his stuff up off the floor, the pictures have mysteriously disappeared.
Continuity mistake: When Carter goes into the lounge, he leans his crutches against the lockers and then moves his bag off his shoulder. One crutch falls to the floor, then the bag, then the other crutch. When the shot changes to show these items on the floor, the bag is lying neatly on top of the crutches - an impossibility due to the way they all fell.
Continuity mistake: Luka is in talking to the first possible kidney transplant patient - he puts his pen into his pocket and is holding the chart in his other hand, also up by his chest. As he says "Minneapolis", the shot changes and we see him put his pen in his pocket again and his chart is down by his waist - there was no time for the shift.
Continuity mistake: As Luka talks to the kidney patient, he is holding his chart to his chest. But several times during the scene, when the shot is on the patient, his hands are at his waist, but at other times they are folded in front of him.
Continuity mistake: When Carol and Luka are sitting in Wrigley Field she has a Diet Coke can in her hand. But when she goes to stand up, she leans down and picks up the can of Coke from the floor - even though at no time did she put it down there.
Continuity mistake: After Carter pulls the IV out of the patient who was allergic to sulfa, Malik asks, "Where's all the blood coming from?" and we see the patient's arm outstretched, bleeding from where the IV was. Carter says, "She must have pulled the IV out", and we see her arm folded up over her stomach - there was no time for the change in position.
Sand and Water (a.k.a. Way Too Soon) - S7-E2
Continuity mistake: When Mark is standing in his kitchen talking to Elizabeth, the position of his hand on his cereal bowl changes from shot to shot.
Continuity mistake: The timeline makes no sense. Carter goes home early and is working out in daylight at home. Kerry needs to leave at 6pm and Mark has a hockey game at 8pm. Luka and Abby are out on a date, after dark, when they are mugged, next Mark is at the hockey game. But shortly after, Kerry is getting ready to leave when Carter comes back to finish his shift. After that, Elizabeth is back in the ER working. Nothing in this timeline makes any sense.
Continuity mistake: In the scene where Dr. Benton is getting Reese ready for day care in the staff lounge and is talking to Dr. Finch, the shot shows Reese with his left hearing aid out of his ear, hanging down then when the angle changes it shows his hearing aid back in his ear without Dr. Benton putting it back in or touching it at all. (01:33:45)
Continuity mistake: When the man who was hit by a driver while on his bike, was being taken to the trauma room he is bumped by someone and blood starts spurting everywhere, including on Maggie, who is wearing Abby's coat. In the very next frame, the coat is clean with no blood on it at all, with no time for Maggie to have changed the coat.
Surrender (a.k.a. Inside Out) - S7-E12
Continuity mistake: When Weaver is leaving her hose the "snow " on her head disappears in the long shot.
Survival of the Fittest - S7-E17
Continuity mistake: When Carter is talking to the boy who has asthma, at one point he says something like "I'm trying to help," notice the tube is not in the boy's mouth. The angle then changes, and he is holding the tube in his mouth instantly.
Continuity mistake: When Carter and Abby drive up to the motel that Maggie is holed up in in Oklahoma, the rental car they are driving has no front license plate. When they pull up to Abby's apartment the next evening, in the same rental car, there is a front plate on the car and the plate is from Illinois.
Continuity mistake: Inside the first 10 minutes, Greene finishes a trauma and his shift and heads upstairs to take Ella from Corday, so she can start her shift. Next, we go back down to the ER, where Benton and Finch are assessing a trauma victim. In the background you see Greene checking an X-ray film, but he has meant to already leave with his baby.
Continuity mistake: The Doctor treating the woman in a corset getting a breathing treatment removes her stethoscope from around her neck twice as the other doctor walks away.
Revealing mistake: As Carter walks into the baby's hospital room to see why it is "crashing." In the long shots the baby is obviously a doll, and its mouth is closed even though it is crying.
Character mistake: In the season 8 episode 'Never Say Never,' In the opening scene before the credits, Dr. Susan Lewis returns to the ER to meet with Mark Greene for lunch. She is standing at the admit. desk and asks Frank, then Luca where she can find Dr. Green. The shot then pans out to a view of her back, exposing the curtain areas. In that shot, Dr. Green walks right past her, no more than 10 feet away. Due to their angles, there is no possible way neither of them would have not seen each other at that moment, yet he walks past, and she continues her hunt for him. (02:15:20)
Answer: A man named Paul Sobriki comes into the ER in the season 6 episode 13 " All in the Family." He is complaining of headaches, Carter and Lucy decide to rule out meningitis and do a lumber puncture. Paul struggles during the procedure and believes that both doctors are stabbing him. Lucy, who is interested in Psych thinks something is wrong with their patient mentally, but Carter is dismissive of her. She gets cross with his attitude and she calls the psych department anyway to have a look at him. Later on and near the closing 20 minutes or so of the episode, all the staff start playing loud music and get a cake which appears to be blue lol, together to party as it's Valentines Day, Carter returns from somewhere and asks where Lucy is. He goes to check one of the rooms for her and Paul Sobriki comes up behind him in the dark and stabs him twice in the lower back, he collapses and as he falls unconscious he sees Lucy on the ground also. In the next episode, Be Still My Heart (ep 14), Dr Weaver discovers them and all of the staff work to try and save them, whilst Carter survives. Lucy's wounds are fatal and suffers a pulmonary embolism as Corday and Romano try to save her. Carter is grief stricken and feels guilty about the way he treated her, he becomes addicted to painkillers and Benton, Greene all help him and book him into rehab.