Coffee-cup DNA reveals Dan was adopted
The paternity test brings a double surprise; House confronts the parents, waves off their outrage, and asks one question about the birth mother.

Every House moment featuring Gregory House, in story order. Played by Hugh Laurie.
360 moments · 8h 56m · by Favseen
Moments 31–60 of 360
The paternity test brings a double surprise; House confronts the parents, waves off their outrage, and asks one question about the birth mother.
An infant measles virus that mutated and waited 16 years: House names the rare disease, its fatal second stage, and the treatment dilemma.
Cuddy balks at a $3,200 DNA test for a wager; House credits the bet with cracking the case, then counts the cash he won from everyone.
House grills his team on why they care about this patient, then mocks a differential where nothing fits every symptom.
Forced into clinic duty by Cuddy, House greets the patients with a speech about his credentials, his reluctance and his Vicodin. No one picks him.
A patient whose cold is already gone gets told from her new glasses and white teeth that she's about to be fired.
The treatment is wrecking Brandon's kidneys. Chase offers a one-in-ten-million fit; House recolors the board and does the odds for two diseases.
Payback for clinic duty: House calls in the hospital's head for a formal consult on the most routine complaint in the room.
House lectures Cameron on her effect on men, catches the team trying to disprove him, and explains why taunting keeps doctors working.
Waiting out Cuddy's golf game with a runner's sore leg, House and Foreman argue the two-illness theory and wager on the patient.
Cuddy refuses to free him from clinic hours; House vows to win their game, insists to Wilson there's no thin line, and fills a Vicodin script.
After a long silent think, House explains how a gout medicine handed out by mistake explains every symptom, then hits a timeline snag.
House explains why not caring makes him a better doctor, then presses the family until a relative admits giving Brandon his cough pills.
The pharmacist holds firm, the family confirms the pills looked right, and House insists he wasn't wrong, reality was.
House orders exploratory surgery over objections; threading a catheter through Brandon's heart triggers an arrhythmia and he has to be shocked.
House drops in on Brandon to boast about leaving early and offer a choice between two kinds of doctor.
House deduces the location and embarrassment from a patient who won't sit, then learns what it is and hands the case to Cuddy.
Finger pain completes the pattern; House walks into isolation, explains the order of the damage, and gets Brandon to admit to party drugs.
Shopping with a friend, House admits he's still trying to work out where the drug came from; the friend claims to be well-adjusted.
House eavesdrops on the obstetricians, lays out two sick newborns as exhibits, shrugs off a shrink suggestion and goes hunting for more.
House sweeps every maternity room and finds nothing until the overflow floor; Cuddy closes the ward and turns away a woman in labor.
With four infants failing, House reads why Cuddy needs a swab team, then the team narrows a resistant hospital germ.
Med students swab the hospital while empty gel dispensers turn up; and someone's tie gets declared a petri dish.
A runner who can't lose weight learns what her parasite really is, confesses a paternity problem, and gets House's take on marriage.
The antibiotics are killing the babies' kidneys; while the team argues which to drop, House decides to treat the two infants differently.
Cuddy demands a medical rationale and informed consent; House offers absurd reasons, then asks which matters more as two more babies fall ill.
The pregnant runner needs a cover story; House catches on a beat late and plays along, telling Charlie that feeling fine is a symptom.
The failed drug points to vancomycin; House assigns Cameron the death talk, and when she freezes he accuses Chase of bailing her out.
Neither antibiotic works on the Hartig baby. Chase fears a rare resistant staph; House blames antibiotic overuse, then spots the heart clue.
Heart tissue says virus. With little blood to spare, the team crosses out families of viruses and House adds a healthy baby as a control.