On the blackboard behind house is the phrase "Tesla Was Robbed". Nikola Tesla was once offered $50,000 to create improvements for the Edison Company and after the work was finished he was not paid. Here there are two tie-ins, one is that the patient offered House $50,000 for her treatment, and two is a joke that most of the applicants for House's team are there working for nothing since chances are they'll be fired.
Wilson: "No, but since she's not a dead cat it's scientifically impossible for her to be in two places at once." House: "Physics joke, don't hear enough of those!" This is a reference to the paradoxical thought experiment known as "Schrödinger's cat."