Continuity mistake: The head of pediatrics is talking about Doug to Mark and Dr. Morgenstern and is holding his glasses in one hand. From one shot to another they flip right over in his hand, with no time for him to change them.
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.
Continuity mistake: Carol is signing papers for the notary and he is complaining about his job - he has one hand up on his large book and the other in his lap. The shot changes and his arm and hand are under the book, with no time to shift naturally.
Continuity mistake: Harper is talking to Mark about her night with Doug and her stethoscope is hidden in her collar and lapel on her right. As the shot changes and she turns, it is suddenly fully visible and the left side has moved much further up towards her neck.
Answer: Take care of your dad.