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)

Fidelity (aka: Truth or Consequences) - S1-E7
Continuity mistake: Elise, the patient, goes into a coma. The various tubes connected to her are on the left side of her head in shots from the side and are underneath her chin in other shots. (00:28:20)
Answer: You have the right episode. The big deal at the end about the letters on the pills was to show that Brandon had the wrong pills all along. House was smiling because he was right.
MoonFaery ★