Synopsis:
Carla worries that she is losing her identity and as a result, her daughter will not know her Latin heritage. Turk does not know how to assure his wife that their child will know about her lineage. Meanwhile, J.D. angers the staff when they realize that he uses nicknames because he doesn't know their real names -- the Janitor challenges him to identify everyone in the hospital, and if he can't, J.D. must take up the mop for a day. Elsewhere, in a case of lost identity, Dr. Cox realizes that he is lonely without his wife and children when they go away for a week.