After the commercial, Foreman the Stalker informs House that the Organ Procurement Coordinator just left PPTH empty-handed. Hopefully, she'll be fired as soon as she sets foot inside her office. House says this probably means that Agent Weiss's wife's heart is free for them to use as they see fit, and starts hacking into her file to get the necessary information. We never see anyone get the info on things like whether or not her organs are even compatible with Henry's body, but I'm happy enough to assume that this happened off-camera. Cameron lodges her obligatory protest to hacking into the hospital's files, then readily tells House how to spell the dead woman's last name. Her file pops up, and sure enough, her organs were declared "not viable." "Time to go dumpster-diving!" House declares happily. Foreman takes the time to actually read the reason why the organs were rejected, and isn't pleased.
Foreman chases after House in the hallway (which doesn't take much effort to do) and informs him that their organ donor has tested positive for hepatitis C. House doesn't care about things like tests and conclusive proof. Laura the Dead Fat Wife's symptoms didn't fit with hep C, so he's thinking she has something else.