In a patient room, Cristina introduces Mr. Gaston and gives some really complicated description of his ailment which I didn't understand at all. As she talk, Burke just stares at her. Mr. Gaston then says he owns dry cleaning stores but never imagined he'd really get sick from all the chemicals. From that and Burke's presence, I'm guessing this is lung-related. Burke tells him they'll do everything they can. He and Cristina then have a very formal exchange about when the oncologist will see him, pointedly referring to each other as Dr. LastName.
Mere and Cristina follow Bailey out into the hall and whisper a conversation about Cristina's Delicate Condition. Meredith thinks Burke should be told so that he can at least help pay for the abortion. Excuse me, for "it." Or for "The Word That Still Makes Primetime Television Execs Squeamish." Cristina maintains that he'll never know and adds, "Once the pregnancy is taken care of, Burke won't even be a blip on my radar." Meredith just gives a dry "Riiight." Cristina orders, "Meredith, leave the sarcasm up to me. Really. It doesn't suit you." Derek walks past Meredith so that they can have their own awkward moment and remind us that both ladies got down with their bosses.
The next patient that they visit is Kelly. The name of her condition is really complicated and, again, over my head, but I'm not alone; the interns need to look it up in a book as well. Bailey asks if Kelly understands it and the surgery, still not explaining the condition so it will pack more of a punch when we see it ourselves. Kelly says that Dr. Shepherd explained it, but as she says his name she gets flustered and begins sweating while she turns bright red. She apologizes, but Alex tells her not to be sorry: "Half the patients that come through here have the hots for Shepherd." Mere lets A Look cross her face and Bailey warns Alex against impropriety. Oh, if she could see the future; this is nothing, honey. Out in the hall, Izzie asks him why he always acts like an ass when anyone other than her is around. She adds, "They hate you enough as it is." He clearly doesn't care, though she clearly does, and he clearly doesn't pick up on it. Bailey then tells them that a likely diverticulitis is coming up from the pit, and they all run after her excitedly.