In the cafeteria scene, the shape of the ice cream sandwich House is eating is inconsistent. In the last shot before he gets up, it's larger than in the previous shot.
When Cuddy brings the baby to Natalie, the baby's arm is dangling, in a way that makes it pretty clear it's a doll. However, when the camera's angle changes and we see Cuddy's face, it is a real baby with the arm bent. In the next scene, the arm is dangling again.
Right after House injects the large hostage with the sedative and he collapses, Jason racks the slide on his pistol and no round is seen being ejected from the chamber. While this action is used frequently in TV and movies for dramatic effect, it is somewhat ridiculous given that 1) the action in essence wastes one round of ammunition as the round that was in the chamber is ejected and a new round from the magazine is loaded or 2) as in this case, no round was ejected thus indicating that the weapon was essentially useless up until that point.
House notes that everyone in the room is sick except for him so nobody else should be injected with propofol. However, Nurse Regina is a staff member, not a patient. House doesn't volunteer her and Jason doesn't notice despite the fact he's the one who brought her in.
Trivia: Thirteen's first name is revealed as Remy.
Trivia: When House grabs his keys off his desk, they are sitting on a book. The book is Memoirs of Sherlock Holmes by Arthur Conan Doyle.
When Jerry is sweating blood, there is a lot less blood on his chest when the camera does a closeup.
As Cameron is examining Becca, her shirt covers her belly and other times it doesn't, depending on the shot.
When House drops "baby barf" on Cuddy's shoulder the stain is different after the first angle change. When the angle changes again we see Cuddy cleaning the original stain from her clothes.
House said he found a brown recluse spider in Thirteen's bathroom. However, brown recluses are not native to the east coast of the U.S.
Trivia: House's ringtone for his team is Mmmbop (Hanson). He claims the ringtone he has for Wilson is Dancing Queen (Abba).
The receipt on the bag of Thai food that House brings for the team alternates between shots; sometimes it's straight and other times it is curled at the end.
In the first scene where House is playing video games in the coma patient's room, he picks up the drink from the coma patient's hand, and places it back there. You can clearly see the patient's thumb and arm moving.
Trivia: The game House plays at the beginning of the episode is "Ninja Gaiden II" for the Xbox 360.
When Lou is sitting in the chair for her chemotherapy treatment, her feet go from crossed to uncrossed depending on the camera angle.
Trivia: Beginning with this episode, House has a new cane. It's called a "Blonde Horn Ball-Light Maple."
Trivia: This marks the first appearance of Taub's wife, though she has no name or lines.
Trivia: Amber's medical wristband at Princeton-Plainsboro indicates that her admitting physician is Dr. Foreman.
Trivia: Thirteen's last name of Hadley is given for the first time.
When House leaves the crash in his memory, his hands are covered in blood, however at the beginning of the episode in the strip club which happens directly after the the bus crash, his hands are clean until he touches his own blood.
Trivia: When resuscitating House in the bus, Wilson is seen doing a series of precordial thumps (blows to the chest with the fist). Though not generally accepted as effective in the field to convert the heart as a defibrillator, it has been used in witnessed cardiac arrests when one was not immediately available. The American Heart Association recommends compressions to breaths at a ratio of 30:2 at 100 compressions a minute.