Grey’s Anatomy Season 7 Episode 7

Overview
Owen puts the residents through a rigorous trauma certification drill; Cristina is left alone to monitor an ill lung transplant patient.
Director: Tony Phelan
Guest Star: Alixandrée Antoine, Alixandree Claire, Amber Benson, Arlene Santana, Leith M. Burke, Mandy Moore, Mark Saul, Melinda Page Hamilton, Ron Perkins, Wynn Everett