I need you to take my blood. For what? So I can get tested ...
Meredith: I need you to take my blood.
Cristina: For what?
Meredith: So I can get tested for the Alzheimer's gene. I mean it's time I know one way or the other. What's a little Alzheimer's too?
Cristina: Alright. This is a lot bigger than a baby step.
Meredith: Just do it before I change my mind.