Character mistake: Cameron suggests the patient is suffering from either "Buerger's disease" or "Berger's disease" (it isn't clear which she means). Foreman rejects this out of hand, since he says the patient has never been out of the USA. However, neither of those two diseases is region-specific. Buerger's disease relates to thrombosis (clotting) of arteries and veins of the hands and feet, and is associated with the use of tobacco. Berger's disease relates to kidney inflammation. Neither is region-specific. (00:33:00)

Visible crew/equipment: After a message is left on House's answering machine, when House heads back into the hospital, just as he tells Cuddy, "Great outfit," the boom mic dips into view over his head, at the top of the screen. (00:19:15)
Fidelity (aka: Truth or Consequences) - S1-E7
Factual error: House rules out Lyme disease from being the cause of the sickness, since he says Lyme disease presents with a rash, which the husband would have noticed. However, although a rash is a common symptom of Lyme disease, it is by no means universal. Estimates suggest that around one-third of people with the disease don't exhibit that symptom. Doctors wouldn't therefore rule out Lyme disease solely in the absence of a rash. (00:10:25)
Continuity mistake: Chase is doing the crossword and asks Foreman what the answer to the clue "iodine deficiency in children" is. The close-up shot of the magazine shows Chase has already written the answer in (cretinism), so why is he asking Foreman the same question? Then, when Foreman gives the (same) correct answer to Chase, he writes it down - only, of course, it's already been written down. (00:02:58)

Factual error: When House is looking over his whiteboard of symptoms for the swimming patient, the symptom "Intercranial Hemorrhage" is shown on the board. However, this is an error. The correct term is "Intracranial Hemorrhage." Anything inside the head is referred to as "intra" not "inter." This is a common mistake for laypeople, however the highly trained and knowledgeable Dr. House should not have made that error. (00:31:25)
Factual error: House's team listed the potential offending organisms of the infection as "MRSA, H. Flu, VRE, and pseudomonas." House then suggests Vancomycin and Aztreonam. Vancomycin only covers gram (+) organisms and Aztreonam only covers gram (-) organisms. VRE is a gram (+) organism, thus it would not be covered by Aztreonam. VRE stands for vancomycin resistant enterococcus, thus it would not be covered by Vancomycin either. House's team therefore failed to cover for an offending organism that could have caused the infection during their initial differential. (00:09:10)
Role Model - S1-E17
Factual error: House and Foreman tell the Senator that he has toxoplasmosis, which is caused by a fungus. Toxoplasmosis is actually caused by a protozoan parasite.
Factual error: House is playing 'Metroid: Zero Mission' on his Gameboy at various times. The Metroid series does not feature space monkeys, nor are there distinct levels. The sounds coming from the game in the show do not match it in real life, and Samus morphing into a ball is most definitely not a failure state.
Continuity mistake: As House describes the lady's symptoms, in the front shot Chase has a small book/pamphlet in his hand. The camera changes to a side shot in the middle of House's description and suddenly the book is on the table and no longer in Chase's hand. This happens right in the middle of House's line and Chase doesn't make any quick movements to account for this discrepancy.
Continuity mistake: The text with the symptoms written on the board changes several times, watch the letter F on the left. Sometimes it has a line across it, sometimes not.
Continuity mistake: When House is talking to Luke about the Vitamin K deficiency and eating the hamburger, the lid on the ketchup bottle is closed on the shots facing House and open on the shots facing Luke.

Revealing mistake: In the opening scene during the game, one of the shots of the boy is reversed. You can see that the text "Tartans" on his jersey is mirror imaged. (00:00:25)
Continuity mistake: Dr. House is listening to a patient's heart with a stethoscope. However as the shot cuts to his face you can see the stethoscope is not in his ears.

Continuity mistake: Foreman is doing a sonogram of Mary's brain. As she comes out of her absent seizure Foreman's probe jumps from the left side of Mary's head to her right.
Revealing mistake: Exactly ten minutes to the end, the couple with the baby Maxine are waiting to hear how she is doing. The mom and the husband are sitting on a bench outside the room in which their daughter is being treated. The mom lies down on her husband. She is supposed to have given birth only recently, so she still has a big tummy. As she lies against her husband, however, it is clear that she is wearing a prosthetic stomach: her blue T-shirt tucks and crinkles into and around it in a way that shows it is not an organic part of her.
Role Model - S1-E17
Continuity mistake: House puts down his Gameboy with the cover up and reaches for his vicodin. A couple of seconds of Foreman looking at House and the shot returns to House, as he is still getting his pills, but now the Gameboy's cover is down.
Other mistake: House has Metroid Hunters on the DS next to the gangster's ear and it shows Samus in a ball rolling around. The way she was rolling couldn't have been achieved because House was holding it, his fingers nowhere near the buttons on the game.

Continuity mistake: During the scene where Dr. Chase and Dr. Cameron are out having a drink, Cameron picks up Dr. Foreman's cell phone. Before she does she takes a drink of her soda. This drink drops the level of drink to half full. When Foreman returns a few seconds later she suddenly has a glass that is 3/4 full. There was no time for anyone to give her a refill. (00:18:55)
Continuity mistake: The first baby dies on December 2nd. House's clinic patient is four months pregnant, and is given an expected due date in late March. Her due date would actually be in early May, if she's in her fourth month in early December.
Answer: She would have No Reason to know it belonged to the CIA. If she did know he went off in the helicopter, all she would know is that it wasn't an ambulance helicopter.
Greg Dwyer