In another OR, the surgeons are calmer but the general attitude is also snide disapproval. Alex tells Beth she'll be in good hands, and she goes to sleep. Once down, Arizona pointedly asks Alex if he's sure. He says that he is, so she puts him on the crash cart and tells him if he's wrong, he should be ready to use it. Way to support your staff and work together to save the life of a child there, people. Alex positions the paddles over Beth's chest.
Once Megan is out of surgery, they tell her that her tests came back clear for the cancer. They ask how she's doing and she admits the wound hurts a little but then turns to her sister and asks, "But not too bad, right?" Tricia agrees but Kostas knows they're doing it for him and laughs it off. Tricia asks if he remembers how much pain their mother was in and when he says he doesn't, reminds him of the pain and all of the tubes. Kostas finally explains himself, that he was two when that happened and the only reason he knows it's sad and horrible is because Tricia has told him so. But he doesn't have nightmares about funerals or freak out over any stomach pain at all. He tells his sister that it's her fear, not his, and she should let him decide. Cristina raises an eyebrow of certain judgment but just keeps working on a chart. I think they're both kind of not communicating here -- he's got a valid point that she needs to respect, but he also could stand to take all their dead relatives a little bit more seriously.
Hunt and Arizona do whatever it is they are doing to Beth's heart but nothing happens. Arizona is still in a snit about the whole situation and then Beth starts to go down, so Hunt tells Alex to shock her. Before he can, though, Hunt tells him to hold off since Beth starts to come out of it. Arizona is stunned to realize that it is a problem with her heart not getting oxygen to her brain, causing the seizures. Hunt tells Alex that he just saved Beth's life, but Alex doesn't seem to hear him and seems traumatized by the fact that he just nearly shocked her -- he's shaking and breathing deep with the paddles still hovering. Hunt comes over and calmly talks him out of it, telling him to breathe, and eventually Arizona drops the paddles and we're treated to a really artsy slow-mo shot of them bouncing near the floor.