A surgeon's education never ends. Every patient, every symptom, every a test. A chance for us to demonstrate how much we know. And how much more we have to learn.

Testing 1-2-3 is the twenty-fourth episode of the third season and the 60th overall episode of Grey's Anatomy.

Short SummaryEdit

The interns take the biggest test of their careers, their first-year medical exams, as the residents attend to three injured mountain climbers. Meanwhile, Callie's suspicions of George and Izzie grow, and Cristina struggles to write her wedding vows.

Full SummaryEdit

Episode in detail.


  • Meredith Grey
  • Cristina Yang
  • Izzie Stevens
  • Alex Karev
  • George O'Malley
  • Miranda Bailey
  • Richard Webber
  • Addison Montgomery
  • Callie Torres
  • Mark Sloan
  • Preston Burke
  • Derek Shepherd
  • Jane Doe/Rebecca Pope/Ava
  • Thatcher Grey
  • Joe
  • Rina
  • Jack Vaughan
  • Andy
  • Walter
  • Dale
  • Molly Thompson
  • Adele Webber
  • Paramedic
  • Paramedic Nicole
  • Proctor
  • Dr. Lexie Grey

Main CastEdit

Guest StarsEdit




Medical NotesEdit


  • Diagnosis:
  • Treatment:

Ava finally remembered her life before the accident. She denied remembering anything, but Alex asked Derek to run tests. She later confessed that she had woken up a few days prior and remembered everything. She told Alex her name was Rebecca Pope.

Dale WinickEdit

  • Diagnosis:
    • Frostbite
    • Infection
  • Treatment:
    • Cefazolin
    • Bilateral hand amputation

Dale, 32, was brought into the hospital with injuries related to being stranded while hiking. He had frostbite on his fingers, which they treated with warm water, but unfortunately, both of his hands had to be amputated.

Andy MeltzerEdit

  • Diagnosis:
    • Broken ribs
    • Antero-lateral flail chest
    • Frostbite
  • Treatment:
    • Surgical stabilization
    • Osteosyntheses

Andy was another of the climbers brought into the hospital. He had several broken ribs which was compromising his breathing. He needed surgical stabilization, which Callie performed.

Jack VaughanEdit

  • Diagnosis:
    • Bone fragments in the spinal cord
    • Frostbite
  • Treatment:
    • Internal fixation
    • Laminotomy

Jack was another of the climbers. He couldn't feel his legs, so Derek suspected a spinal injury. Later, he was able to feel Derek touching his feet, but Derek said they'd need an MRI to know the full extent of his injuries. He had bone fragments in his spine, so Callie performed an internal fixation.


  • Diagnosis:
    • Pregnancy
    • Heartburn
  • Treatment:
    • Pre-natal care
    • Antacid

Rina was Joe and Walter's potential birth mom. They brought her to Addison for a pre-natal exam. An ultrasound revealed that she was carrying twins, which she didn't know. She also had serious heartburn, for which Addison prescribed an antacid. Later, she came into the bar with severe pain in her chest and then collapsed, so she was taken to the ER.

Adele WebberEdit

  • Diagnosis:
    • Pregnancy
    • Miscarriage
  • Treatment:

Adele, 52, came into the ER after being in a minor car accident. She also told Addison that she was pregnant and she was spotting, so Addison wanted to keep her overnight for observation. Later, she passed out in the bathroom with vaginal bleeding.


  • Diagnosis:
    • Head trauma
  • Treatment:

Lonnie, the fourth climber, was brought into the ER with an axe in his head.


Song Performer Scene
"The Rope is Long" Let's Go Sailing
  • Meredith dresses for Susan's funeral.
  • Cristina, Izzie, and Alex are studying the exam when Meredith comes in.
  • Callie helps George study. She finds his Mercy West acceptance and is excited for him.
  • He's not as enthused.
  • Derek gets on the elevator with Meredith. He offers to go with her to the funeral, but she declines.
"Wake Up Alone" Amy Winehouse
  • Callie, Cristina, Bailey, and Burke operate together and talk about mountain climbing.
  • Callie finishes her work and leaves.
  • Mark is working on his patient's hands and Callie agrees they need to be amputated.
  • Derek and George are operating together. George tells Derek about Meredith freezing during her exam.
"Corner of Your Heart" Ingrid Michaelson
  • Ava refuses to tell Alex her real name.
  • Izzie and George talk in the scrub room about Meredith. Izzie tries to talk George out of leaving the program.
  • Izzie leaves the room and cries.
"Stains of Saints" The Weather Machines
  • Addison joins the bachelor party.
  • Derek and Burke talk about the wedding.
  • Mark asks Addison about LA.
"Million Faces" Paolo Nutini
  • Izzie lies and says she was talking about Denny.
  • Derek sits at the bar and is approached by a woman, who asks to buy him a drink.
  • He says no, so she walks away.
  • George sits alone.
  • Ava goes to Alex and tells him her real name: Rebecca Pope.
  • Richard finds Adele bleeding on the bathroom floor.
  • Walter brings Risa back to the bar. She collapses to the floor.
  • Bailey tries to talk to her son, but hangs up when paramedics bring in the fourth climber, who has an ax in his head.
  • Richard calls for help for Adele.

Notes and TriviaEdit


PROMO - 3.24 - "Testing 1-2-3"

  • This episode's title originated from the song Testing 1-2-3, originally sung by Barenaked Ladies.
  • This episode scored 19.58 million viewers.
  • Chyler Leigh's first appearance on the show as Meredith's sister, Lexie Grey.
  • This is the only episode in which all of the Grey sisters (Meredith, Lexie, and Molly) appear.


Episode StillsEdit

Behind the ScenesEdit


Mark: The bachelor party was short handed. Which explains why I'm here.
Addison: I'm the only woman here. Am I supposed to the be the entertainment? Because I'm not stripping.
Derek: That's all right, we've all seen it before.
Mark: True.
Burke: I haven't.

Izzie: Who's gonna hold us together when you're not here? You're the glue. You're George.

See AlsoEdit

A complete overview of this episode's crew can be found here.