The docs walk Jen to surgery, while she struggles to remind Rob what she wants for the baby. He knows what she's trying to say -- piano lessons, and public school so he doesn't become a snob. These two only get cuter, which really only ever spells certain doom. But Rob assures Jen that she'll pull through to raise their son too. They kiss, and as they go in, Addison mentions that Jen's blood pressure is higher than she'd like. Derek basically cuts her off and says they can't wait, and she did her job and made him aware of the sitch. Rob looks on worriedly, but fortunately he can't hear the bickering between the two surgeons about whether to cut his wife open. Alex notes to Mere, "Your guy and my guy work well together," and Meredith responds that her guy works well with everyone. He works well with everyone he can boss around, Mere. That's not quite the same thing.
Izzie is in the clinic where Graciella eagerly asks if they are going to be able to scrub into a surgery. Izzie tears them all a new one when she asks if they really think they'd be allowed to do that when they could barely finish the Intern Bowl? She then turns around and laughs really smugly to herself. She's confronted by a woman who turns out to be the patient that she and Sadie learned had cancer. The only thing is, after consultations with different doctors and a round of tests, it turns out that she doesn't have cancer, she's only anemic, but it took $80,000 in medical tests to figure that out. As a result, she's suing the hospital. Just in case we don't get it, she explains that her lawyer figures that her blood was switched with someone else's that day. He told her not to come there, but her conscience told her to come so that Izzie can figure out what poor soul might have been told she was anemic but really has cancer. Hmm, who's blood was sent to the lab at the same time that day? Izzie apologizes, but the woman bashes her over the head with, "Don't apologize to me, I'm just anemic! You apologize to that dying person." Cut to Izzie, sitting in a desk chair and looking worried, then pulling out her own test results that diagnosed her with anemia.
Derek is working away when Alex and Addie notice that the baby is going into distress and Jen's blood pressure is dropping. He tells Addie to wait but she says the baby needs to come out -- 4 surgeries in 3 days are a lot for an unborn baby to handle, as it turns out. Derek keeps telling her to wait since the baby is too young, but finally she decides to go in while Derek aggressively tells her to leave the baby in. Just as she's about to cut, Derek triumphantly says he's done. It's a little alarming how much his voice says he's happy to be right instead of Addison, and not just because of his patient's life and all that extra hoo-ha.