Fidelity

Fidelity is a 1st season episode of House which first aired on December 28, 2004. The cause of a woman's hypersomnia turns out to be obvious, but with no way to explain how she could get ill, the only way the patient's husband can save her is by admitting he can't trust her.
==Recap==
After coming home from jogging with a friend, a man tries to coax his wife out of bed, where she has been for the past three days. She strikes her husband when he attempts to rouse her, then says there is something wrong with her.
Elise sees six doctors before Cameron brings the case to House. He guesses clinical depression, but that has already been ruled out. He finally agrees to take the case. She presents with a fever, irritability, and is sleeping 18 hours a day (hypersomnia). The team does a differential. House orders them to redo the blood tests and do an MRI.
The team tells the patient and her husband they suspect a tumor. They do the MRI to look for it. However, they find no lesions or masses. The husband is upset that they are taking too long to come up with a diagnosis. Suddenly, the patient has a seizure and starts vomiting.
They review the MRI results, and no-one can see anything wrong. Wilson thinks it might be paraneoplastic syndrome from breast cancer, which can affect the brain. They do a mammogram. The patient tells the doctors her mother died of breast cancer at the same age. However, they still can't find a tumor, so Wilson wants to do a PET scan. They also suggest they check the patient's work place, since if it were something in the house the husband would be sick, too.
Foreman goes to the patient's workplace, a restaurant. She works roasting meat. He talks with the staff about what products they use. They only use all-natural products and the rest of the restaurant staff is healthy.
After complaining about an itch, the patient starts hallucinating that bugs are bursting out of her body. The team starts another differential. House thinks it is African trypanosomiasis, or sleeping sickness, but they can't understand how she got it and the treatment could kill her if they're wrong. Foreman thinks it is a disease that can be caught from rabbits, tularemia, which she has been exposed to at work.
The team starts discussing the sleeping sickness and tularemia diagnoses. Foreman wonders why House is so tough on him, but not the others. The others tell him it's because House thinks more highly of him.
House quizzes Wilson about who he's seeing on the side. Wilson admits he had lunch with one of his nurses, but denies having an affair.
House figures that the patient might have gotten sleeping sickness through sex. House tells his team to find out if either partner has been unfaithful. The team starts questioning them. Both deny being unfaithful. Without an admission, House can't think of any other way she might have been exposed to sleeping sickness and orders treatment for tularemia.
The patient suddenly exhibits short term memory loss, repeatedly asking what time it is, then becomes unresponsive and lapses into a coma. The coma rules out tularemia, but sleeping sickness would still be on the board if they could figure out how she was exposed.
House talks to the husband and asks him to consent to the drug for sleeping sickness on the supposition that she's been unfaithful. He warns that the drug alone could kill her, but adds that leaving the sleeping sickness untreated would kill her within a day anyway. When the husband says he doesn't know if he is sure his wife has been faithful, House orders the treatment.
Foreman and Chase go over the precautions and numerous side effects of the treatment drug. The patient doesn't improve, but doesn't get worse. The husband talks to Cameron about his feelings now that he believes his wife may have cheated and asks her if it makes him a bad person for hoping she doesn't wake up. Cameron tells him it does.
Wilson again denies having an affair and tells House that he loves his wife. House points out that he loved his first two wives, too, yet he cheated on both of them.
House finds Cameron in the lab, and finds out she has been crying. Cameron admits she told the husband he was a jerk for wanting his wife to die. She tells House that she was married for six months to a man she loved who died of thyroid cancer that metastasized to his brain. House knows that isn't the whole story - Cameron must have known he was terminally ill when she married him.
The patient takes a turn for the worse - her heart is being damaged by the medication. House tells the husband the drug isn't working. The husband breaks down and asks her not to die, at which point, she begins to come out of her coma and is finally out of danger.
After the husband storms out of the room, Cameron confronts the husband about his feelings, and reminds him that his wife loves him. House asks Elise who she had the affair with, so that he can be treated. She realizes her husband isn't coming back. Cameron goes to find the person who gave her sleeping sickness, and finds the husband's jogging partner.
==Clinic Patient==
The patient has shortness of breath and tightness in her chest, although she has no history of heart disease in her family and no stress. House thinks it might be anemia and the patient takes off her blouse for an EKG, and House sees her huge breasts. She says she had her breasts enlarged for her husband. House calls in Wilson. They discuss why she had them enlarged: House believes she did it for herself. They also discuss why Wilson is wearing a new tie: House thinks he has a girlfriend. House orders blood tests on the patient. Cuddy suspects House is just keeping the patient there to ogle her breasts. However, House orders an EKG, blood tests and a tox screen.
Cuddy comes back the next day with the blood test results, which are normal, but the EKG shows her heart rate is down. Her husband has recently been diagnosed with high blood pressure. House figures that her husband has been spiking her breakfast with his beta blockers to try to tone down her sex drive to match his, which has been suppressed by the same medication.
==Zebra Factor 10/10==
Sleeping sickness is almost unknown in the United States, and for a person with no history of travel to where it's endemic is practically impossible.
==Major Events==
*We learn that House understands Portuguese.
*House admits he checked Cameron's medical records to see if she's ever been pregnant.
*Cameron reveals to House that when she was twenty one, she married a guy that she met in college. However, the marriage lasted for only six months as her husband soon died of thyroid cancer.
*House points out Wilsons's marital problems again by referring to the tie he's wearing to "look pretty at work" (since his wife Julie Wilson couldn't stand its green color).
==Trivia & Cultural Reference==
*The reference to poisoned apples and evil stepmothers is from Snow White.
*Partridge in a Pear Tree is a reference to the Twelve Days of Christmas
*And Then There Were None is a classic Agatha Christie murder mystery.
==Quotes==
Wilson on House paging him to the clinic patient:
Cameron to Elise after the mammogram: 
==Cast==
*Hugh Laurie as Gregory House
*Lisa Edelstein as Lisa Cuddy
*Omar Epps as Eric Foreman
*Robert Sean Leonard as James Wilson
*Jennifer Morrison as Allison Cameron
*Jesse Spencer as Robert Chase
*Dominic Purcell as Ed Snow
*Myndy Crist as Elise Snow
*Brennan Elliott as Adam
*Clementine Ford as Samantha Campbell
*Henri Lubatti as Master Chef
*Endre Hules as Sous Chef
*James Conkle as Young Boy
==Links==
*Episode article on Wikipedia
*Episode page on IMDB
*Episode summary on TV.com
*Episode summary on House MD Guide
*A review of the medicine at Polite Dissent﻿
Category:Episodes
Category:Season 1