Meredith Grey (narration): There are some moments in the OR that everything goes to hell, and no matter how much you've seen, how ready you are, how much help you have, nothing can truly prepare you. You have to keep going, or your patient will die. The trouble is, in these moments, every instinct in your body tells you to freeze. So what do we do when instinct tells us to freeze? When we can't see the right answer? In those moments, it's usually a good idea to trust the instinct and say pause, because decisions made in the heat of the moment can ruin a whole lot of lives.