Continuity mistake: When Jeanie and Al are in the diner, when she spears a piece of fruit on her fork, Al has his hand on his hip. However, when the shot changes and she says, "How about your grandmother?", his hand is up on her shoulder.
Continuity mistake: Dr. Hicks is standing in front of the surgery white board talking to Carter and she says "Care to join me?" He replies "Love to" and the shot goes right back to her - she has moved 8 or 10 inches to the left, without enough time to have done this in real life.
Continuity mistake: Carter makes an upward motion and grabs Angel's paper cup of booze from her - but in the next shot there is no sign of the cup and he is holding a clipboard. There was no time for him to get rid of it.
Continuity mistake: Carol's notary asks her for some water and she takes the cup in one hand and the jug in the other and pours. The next shot shows one hand still pouring and the other up on her papers. She had no time to put the cup down and move her hand.
Random Acts - S3-E20
Revealing mistake: When Dr. Greene is being attacked in the toilet, he is thrown into a supposedly brick wall. It bends and wobbles like a set wall would.
The Healers - S2-E16
Plot hole: When Benton and Carter are having to do the surgery on Raoul in the ER after he was burned they are not wearing masks.Dr Greene had just said that the real cause of death in burn victims is infection and not the burns themselves.
Other mistake: When Jodi O'Brien is having seizures during the birth, Dr. Greene decides to take the baby out prematurely. Complications result and the woman dies, they show a shot of a clock in the background and it says 7:00, but when they say the Time of Death they say 6:02.
Continuity mistake: When Carter enters Mrs. Connelly's room, we should still be able to see Lucy who was just talking to him outside the door. But when the shot shows him entering the room, there is no sign of Lucy.
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.
The Peace of Wild Things - S6-E6
Continuity mistake: Peter is at his sister's house, in the kitchen, and they are talking about Carla. Jackie takes the dish towel off her shoulder and drapes it over a chair back and heads for the fridge. When the shot changes to her standing at the fridge, the towel is over her shoulder again. In the next shot, it's gone again.
Masquerade - S5-E5
Continuity mistake: The patient Coco is sitting up in her bed talking to Mark about the drug he gave her. From one camera angle her hands are in front of her, but from another her hands are behind her.
Good Luck, Ruth Johnson - S5-E9
Continuity mistake: A policeman is in the ER talking about the little boy who was shot. He gives Carol a schoolbook with the boy's name in it. She looks at it and asks, "What about Wilson's family?" and then closes it - then as the cop answers, "Workin' on it", we see her closing it again.
Continuity mistake: Dr. Wesr is talking to Kerry outside while it is snowing. He has quite a lot of snow on his shoulders, but within a few seconds, most of it has disappeared, which in real life wouldn't happen.
Do You See What I See? - S4-E10
Continuity mistake: After Dr. West leaves Anspaugh's office, the next shot shows both Kerry's hand and stethoscope have changed position. Also, the throw which had been fully visible behind her, is now only visible on the right side.
Continuity mistake: When Carter first starts to confront the drunk patients Angel and Nathan, the door to their room is open behind him. Angel falls to the floor and the shot shows the door is now closed. The shot goes back to Angel laughing and the door is ajar again. Then it's closed again, and then open when Susan comes into the room. All this happens within a few seconds.
Continuity mistake: Mark asks the fireman if he can crash there for the night. His hat and the magazines on the table change position from shot to shot.
Obstruction of Justice - S4-E9
Continuity mistake: When Carol goes to get Doug to see the sickle-cell patient, the clock reads 3:50. The next few scenes include Rachel arriving at the hospital and being taken to the dentist and for a dual makeovers by Cynthia. When Mark is walking by the same clock with Herb the lawyer, it reads 2:30. He then says goodbye to Herb and his ex-wife arrives to pick up Rachel, who is now back in the ER with Cynthia. The clock times do not reflect the sequence of scenes.
Continuity mistake: Carol is at her house with her mother, who makes 2 cups of coffee. She brings them to the table and Carol takes one but in the next shot, both mugs are still sitting on the table in the original position.
Continuity mistake: When the little boy pounds on Doug's car window, the light outside goes from twilight to dark to twilight again, all in a few seconds.
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.