When Rebecca rides the bus and runs to work in the beginning, her sweater is blue. When she talks to her friend and the children, it is green.
In the opening kindergarten classroom scene, the girl with long brown hair in the front row is seen seated in her seat as the teacher enters the room. Cut to another angle and she is seen approaching her seat and sitting down.
Dr. Chase says the treatment is two pills "with a meal". Then the patient takes the pills without food.
When Chase comes up with the X-ray idea there is a woman holding flowers and wearing a hat that walks behind him three times in the same direction.
It is shown that steroids initially relieve symptoms of neurocysticerocis followed by worsening. House says that it is due to dead worms causing inflammation for which he gives albendazole (which is in fact used to kill the worm). In reality, what happens is when albendazole is administered it causes death of worms which may worsen symptoms and needs steroids to relieve symptoms. Here it is shown exactly opposite.
The doctors wouldn't be doing the MRI it would be an MRI Tech.
Gregory House suffers with chronic pain from his right leg and uses the walking stick in his right hand. In real life such a person would use the stick in the opposite hand (i.e., the left hand in his case), to offload the weight on the affected side and form a stable tripod base when mobilizing. This is basic knowledge for anyone in the medical profession; but, in later episodes of the show, it is made evident that House is using the cane on the incorrect side on purpose.
In the last shot of the episode, as the camera moves away from the hospital, it is clear the shot is actually reversed, as the cars on the road in the bottom-right of the screen are moving backwards.
During the MRI, there is a metal IV pole in the room.
Dr Cameron mispronounces "Creutzfeldt-Jakob disease", she says JAY-kob which is incorrect, it is pronounced YAH-kob.