My Conventional Wisdom is the twentieth episode of Scrubs' sixth season. J.D., Turk, and Dr. Kelso attend a medical convention in Phoenix, where J.D. discovers that Kim is still pregnant. Dr. Cox upsets Elliot while she is planning her wedding to Keith.
In an effort to get over Elliot, J.D. accompanies Turk to Phoenix to attend a medical convention. There, Dr. Kelso and other Chiefs of Medicine live up the party. J.D. and Turk attend a lecture given by J.D.'s ex-girlfriend, Dr. Kim Briggs, who is visibly pregnant—despite the fact that she told J.D. a few months earlier that she had miscarried. J.D. is upset with her for lying to him, and stands her up at the bar after promising to talk things out.
Back at Sacred Heart, Elliot has problems planning her wedding when Keith doesn't realize the details are 100% up to her. Dr. Cox refuses to attend the wedding, and Elliot retaliates by refusing to let him use her private practice's SPECT camera. (He uses it anyway.) Later, Dr. Cox makes Elliot doubt her love for Keith, convincing her that she is marrying him just to get married. Elliot becomes increasingly stressed and tries to make Keith prove his love by performing her every demand. In the end, Dr. Cox and Carla calm her nerves.
- J.D. can't resist using his "colleague" Dr. Toilet (a diagnosing toilet).
- Dr. Cox tells Elliot that she is only marrying Keith because he is her last resort after weeding out "the women and the gays, the too-poor, the too-old, the ones who just barely beat the rap for murdering their first wife" (Dr. Mickhead), "and, of course, Ted."
- J.D. orders Basic Instinct 2 on Moviefone.
- J.D. and Turk do "convention stuff" with Old Young MC.
J.D.'s Girl Names
J.D. has no girl names in this episode because he and Dr. Cox don't interact: J.D. is in Phoenix and Dr. Cox is at Sacred Heart.
- Elizabeth Banks as Dr. Kim Briggs
- Jeffrey Scott Kelly as "Dr. Toilet" Salesman
- Gary Kraus as Seamus Meltzer
- Stephon Fuller as James Gurley
- Andrew Miller as Jack Cox
- Mark Rudy Rohde as Bartender
- Robert Pierce as Dr. Shapiro
- Michael McDonald as Dr. Toilet (Voice)
- Leon Simmons Jr. as Old Young MC
- Michael McMillian as Patrick
- Bob Bencomo as Colonel Doctor (uncredited)
- Geoff Stevenson as Dr. Beardface (uncredited)
- Frank Encarnacao as Dr. Mickhead (uncredited)
- Manley Henry as Ronald aka Snoop Dogg Resident (uncredited)
- "Vacation" by The Go-Go's
- "Human" by Jon McLaughlin
- “Bust a move!”— Old Young MC
- “One of them dudes is gonna die this weekend.”— Turk
- “You have a problem, sir. Seek help!”— J.D.
- “Soulmate? Try 'last resort.' Let's just be honest for two seconds here. You've basically lived in this dump for the past six years, and there weren't that many guys to choose from. Once you eliminate the women AND the gays (a group of nurses disappear), the too-old (Dr. Beardfacé and another attending disappear), the too-poor (a cafeteria worker, a surgical resident, and a medical resident disappear), the ones who just barely beat the rap for murdering their first wife (Dr. Mickhead disappears), and, of course, Ted...”— Dr. Cox
- “Noooo!!”— Ted, diving out from behind a pillar
- “Noooo!!”— Ted, diving out from behind a pillar
- “...well then, what's left?”
- “When I got engaged, all I could think about was 'Why am I with this angry, cynical idiot', but then I thought through it and realized he was the love of my life. Unfortunately, we had a little argument and we broke up, but then I met Perry a month later, we have two beautiful children, and the point is, sometimes settling works.”— Jordan
- Elliot writes "Dumb Frick" directly underneath the collar of Keith's scrubs, yet the writing is gone in subsequent shots.
- Elliot says she wanted Flourished Italic as the lettering on the wedding invitations, yet the lettering she tells Keith that it should look like is Copperplate.
- During Dr. Cox's rant/fantasy sequence of Elliot's choices of men, he noticeably does not mention J.D., although he most likely would have fallen under "the women."
- Janitor calls Carla "Nurse Ipanema", a reference to an earlier episode in which he dances to "The Girl From Ipanema".
- Elliot says that she has reserved a church for the third weekend in July every year since she was 19, but in the Season Three episode "My Journey", she says that she has booked her wedding for April 25, 2006.
- Dr. Cox says Elliot's wedding date, July 21, in a strange way. Instead of saying "July twenty-first", he says "July twenty-one".
- When the Janitor is working at Coffee Bucks he tells the story of how he got his although the viewers do not hear it thus keeping the Janitor's name a mystery.
- The director of this episode, Michael McDonald, voiced Dr. Toilet.
- The production set of the Phoenix Convention Center is the same set used in "My Interpretation" for the funeral of T.C.W.'s husband.
"Conventional" is a play on the word "convention" (like the one J.D. and Turk are at). Wisdom refers to the J.D.'s new "wisdom" about his unborn child.