Factual error: When Dr. Cameron's agoraphobic patient goes into cardiac arrest at home following the surgery, she tells House to get the paddles ready. House, while performing CPR is talking on the phone with the patient's lawyer, informing him that patient has PEA (pulseless electrical activity) on the cardiac monitor, but Dr. Cameron defibrillates the patient anyway, restoring the heartbeat. Defibrillation is not indicated for PEA, it will not restore the pulse and might send the patient into vFib.

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.
Character mistake: Episode 6.12, Moving the Chains: Marcus tells House that he and Eric were arrested for stealing a car, he was 16 and Eric was 14. He also says that his brother never did anything criminal after that. In season 1, we were told that Eric was 16 when he was arrested for stealing a car.
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: All the babies in the incubation room are, very evidently, dolls. When one is moved inside, his cries are heard but he doesn't mouth them.
Suggested correction: There are 4 children in there. How can you tell that the baby heard crying is the one who's crib is being moved?
Continuity mistake: Most of the time, whenever House puts down his Nintendo DS, the angle at which it is bending changes. For example, in one shot, it is not bent at all and in the next it is almost closed.
Continuity mistake: Chase is 26 years old in season one. In season two he's 30.

Continuity mistake: House is about to inject Ezra Powell (Joel Grey) with what is supposedly a lethal dose of morphine. In the shots where they pan out to show House addressing the room at large, the syringe is very full, almost completely. When they zoom in on House holding the syringe, it is only filled a fraction of that much - maybe a quarter to a third. This doesn't happen just once, but every time they switch between shots.

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)
Factual error: When going into anaphylactic shock, the patient is given epinephrine in her forearm. Epi would be given into her lateral thigh, or deltoid muscle. The forearm would be the least ideal place for an IM injection.
Continuity mistake: Season 6 - Ep. 6 Known Unknowns Before House goes to the hotel he's out on the street and the collar of his shirt is up during all front and back angles, except for a brief single back angle where it's down. Then it changes to up again.
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.
Visible crew/equipment: In the scene where House and Allison are walking down the stairs, they round a corner and we see a dolly shot down a short hall with a glass wall in front. During this shot, a camera, cameraman, and dolly are visible in reflections on the glass. (00:08:20)
Factual error: In episode 414, "Living the Dream," the patient Evan is given a nerve function test. We see Kutner and Taub performing the test by puncturing Evan's legs with needles. Modern nerve function tests actually rely on electrical impulses from a small computerized device, with no needles necessary.

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.