House's office, where the good doctor has added "cardiac arrest" to the big board, and Foreman is in the middle of arguing, "We've got lung and kidney failure, neurological symptoms, and now cardiac arrest. A systemic disease with multi-organ involvement is the definition of lupus." It's not...eh, nobody listens. House does, suggesting that they start Bob on interferon, which, while not a treatment for lupus OR heavy metals, is the best method of treating -- dun DUN duuuuuuun -- a viral infection. Brows crease across America.