Continuity mistake: A patient in a red dressing gown is walking around the background when JD is teasing Eliott. He is seen twice but wouldn't have been in the second shot with the direction he was walking and in the time taken for the shot.
Continuity mistake: When Carla, JD, Turk and Elliot are in the canteen, JD's drink changes with Elliot's by the end of the scene.
My Old Lady - S1-E4
Revealing mistake: Just before all the bricks fall on JD and it's a surprise, you can see him flinch before they hit him.
Continuity mistake: When JD is giving Ben the bad news of his diagnosis, Ben's arm can be seen held down by his knee in one shot, and in the next it is instantly behind his head.
Continuity mistake: When Elliot is looking at her patient, you see her reflection in the glass and her stethoscope goes down the SIDE of her ID badge clip, when it cuts to showing her through the glass it's now OVER the clip.
My Old Man - S1-E19
Continuity mistake: When JD's Dad arrives at the apartment, and sits down to drink a beer, from straight on his jacket is open and his tie is draped to the right. When the shot cuts to a view from the side, his jacket is now open much less, and the tie hangs straight down his shirt.
My Old Man - S1-E19
Continuity mistake: When J.D. and his Dad are sitting in the canteen, as J.D. says "But Dad, you sell office supplies," a bottle of water suddenly appears on the table between shots. (00:10:25)
My Day Off - S1-E9
Continuity mistake: When Turk operates on JD he cuts open the left side of his abdomen. However, when JD is in recovery the bandage is on the right side of his abdomen.
My Hero (2) - S1-E23
Continuity mistake: When JD is talking with Dr Cox and Ben in the staff room, Dr Cox's white coat keeps changing from wide open to mostly closed, and his stethoscope moves between shots.
My Old Man - S1-E19
Continuity mistake: Towards the end of the episode when JD and Dr Cox are talking on the ward, JD's stethoscope jumps between shots from behind his name tag, to in front, and back again.
Continuity mistake: When the woman is lying in the MRI scan, the amount of her body that is within the chamber changes between shots.
My Student - S1-E17
Continuity mistake: When Dr Cox goes to speak to Turk in the cafeteria, his stethoscope goes instantly from sitting straight down across his grey shirt, to at an angle across his white coat.
My Bed Banter & Beyond - S1-E15
Continuity mistake: Towards the end of the episode, when Elliot and JD are sitting talking in the staff room, Elliot's stethoscope goes from sitting on top of her name badge to behind it.
Continuity mistake: The second time that Turk and Elliot are studying in the apartment, papers appear on the table in front of Elliot from nowhere.
Continuity mistake: When JD and Cox are out having a drink and JD is about to leave and says "Look, Dr. Cox. Don't get me wrong. I love getting drunk in my jammies", there is no glass anywhere near Cox. When it cuts Cox suddenly raises a glass to his mouth.
My Way or the Highway - S1-E20
Continuity mistake: When Dr Cox is trying to tell the nurses how to make coffee, between shots Laverne's purple shirt goes from wide open to mostly closed, and her stethoscope moves.
My Day Off - S1-E9
Continuity mistake: At the end when they are in the bar, Dr Cox asks for 5 shot glasses, the camera cuts to JD and then back to Dr Cox. The glasses have been filled, but not enough time has passed for all 5 to have been done.
Continuity mistake: The letter that JD drops on to Turk's tummy changes angle between shots.
My Last Day - S1-E24
Continuity mistake: Right at the end, when Dr. Cox turns to face JD there is a cup next to his right elbow, the shot cuts to further away, he gets up and storms off and the cup is no longer there.
Continuity mistake: When the janitor is speaking into the stethoscope, his right elbow is on his knee and his left hand is on the mattress, when it cuts closer, his elbow is further up and his hand is next to his leg.
Answer: Dan was drinking beer and Cox feared that Dan might get so intoxicated he would fall asleep and drown in the tub.
Mortug