[s4e16] House's Head (part 2) Today

: House deduces that Amber was taking amantadine for the flu. The crash caused acute kidney failure, preventing her body from processing the drug and resulting in lethal amantadine poisoning.

: House is motivated by an unfamiliar sense of guilt. He ponders the unfairness of a "misanthropic drug addict" surviving while a promising young physician dies. [S4E16] House's Head (Part 2)

In the second part, "Wilson's Heart," the team discovers Amber is suffering from multisystem organ failure. : House deduces that Amber was taking amantadine for the flu

: The recovered memory reveals that House, too drunk to drive, called Wilson for a ride; Amber arrived instead. They were on the bus together when the accident occurred. The Medical and Moral Failure He ponders the unfairness of a "misanthropic drug

: The episode concludes with Thirteen testing positive for Huntington’s disease, echoing the theme that life is often "unfair" and beyond a doctor's control.

The finale begins with House suffering from retrograde amnesia following a bus accident. Convinced he witnessed a life-threatening symptom in a fellow passenger before the crash, House undergoes increasingly dangerous procedures—including hypnosis and deep brain stimulation—to retrieve the lost memory.

: Because amantadine binds to proteins, it cannot be cleared via dialysis. House must inform a devastated Wilson that there is no cure. Major Themes