The doctors give Margo vecuronium to stop her flailing; since vecuronium is a paralytic, Margo would need to be on ventilation for the entire time it was in effect, because she would also be unable to breathe.
Actress Elle Fanning plays the daughter of the patient. Her older sister, Dakota Fanning, was a costar of Jesse Spencer (Dr. Chase) in the movie Uptown Girls (2003).
The husband's name is Ted. The Actor playing him also plays a character named Ted in Pretty little liars