Interestingly, a wound on Luka's left cheek is trickling blood. We learn later that this particular wound came earlier in the day, and I can't figure out why it would've reopened if most of the damage to Luka's face from this accident happened on the other side of his head. I don't buy that he smacked the top right of his skull and reinjured his left cheek, yet all the precious facial features in between the two remained unsmashed and even unsullied. Just a thought.
Erin's machinery is beeping wildly, so that we know she's in the throes of what I like to call Deep Shit. Susan screams for a backboard and Romano yells that he's going to free up an OR for her. Gallant stares at Erin, scared, until Weaver gives him a task. Then he looks up and gazes right at Luka, all wounded and sad that his crush has gotten, well, crushed. Luka glumly watches them hold down Erin's head and apply a neck brace. "She was walking on the scene," he whispers. Right on cue, everyone stops what he or she is doing to stare at Luka, just so we're clear that this is all too shocking. This lasts for a full beat pause until Erin's machinery is like, "Hello? This is my scene," and Erin practically sits up and says, "Excuse me, can some of you help me not die?" They jump back to work. Gallant yanks Luka back a few feet. "You might contaminate the field," he says harshly. The din of the doctors fades as we focus on Luka, though we faintly hear them diagnose a possible liver laceration. "Dr. Kovac, what happened?" Gallant asks.