Ratings: 12.78 Million Viewers
Casting: Katherine Heigl (Izzie Stevens) does not appear in this episode.
Meredith (opening voiceover): We assume the really serious changes in our life happen slowly, over time. But it's not true. The big stuff happens in an instant. Becoming an adult. Becoming a parent. Becoming a doctor. One minute, you're not, and the next... you are. Ask any doctor, and they can point to the one moment they become a physician. It usually isn't med school graduation day. Whatever it is... nobody forgets it. Sometimes you don't even know anything's changed. You think you're still you and your life is still your life... but you wake up one day and you look around and you don't reognize anything. Not anything at all.
Bailey: You wanna show me the scan?
Tom: Uh, how about we look at it over lunch?
Bailey: I'm in the middle of a divorce. People call me the Nazi, and it's not because of my ice blue eyes. I spend 12 hours a day carving people up, and I like it. I have a child and I have no room for casual anything. I'm angry all the time. And deeply confused because a lot of people in my life have let me down recently, one of them was me. It's devastating, but not completely because it turns out I like sleeping crosswise in the bed and not having to shave my legs. My three year old used to be potty trained, and now he isn't because his father no longer lives with us and his world no longer makes sense, and the only thing he thinks he can control is his bladder. So he urinates, in a lot of places you wish he wouldn't urinate. ... You want lunch or you want to show me the scan?
Sloan: Well, which one of you did he sleep with?
Arizona: Oh, not me.
Addison: You told her?
Mark: She's my kid. We were bonding.
Addison: That is not how you bond with children!
Mark: I'm still getting the hang of it.
Owen: How is it going?
Alex: Yang's killing her patient, and Altman's reading "The Atlantic Monthly."
Mark: Don't make me choose between you and her.
Lexie: Why? 'Cause you'll choose her?
Mark: Yeah. I'll choose her.
Lexie: I think our relationship just ended.
Meredith (closing voiceover): You never forget the moment that you become a doctor. A switch flips. Suddenly, you're not playing dress-up anymore. You own the white coat. What you may not notice is the moment that being a doctor... changes you.
Episode Title: Blink
"Blink" is the title of a song by several artists, including John Dahlback, Plumb, and Blue Scholars.