Response for Klass

She uses these two characters, one being inside and one outside, so that people could understand her more if that makes sense. More than likely we are on her mother's end of the spectrum because most people aren't med students or know a lot of medical jargon. The use of Mr. Eponym is to show just how extreme things can be abbreviated and difficult can be to understand in the medical field.

It's almost like she, the main character, starts out more like her mother but eventually makes the eventual and natural transition to Mr. Eponym's side since they are working in the same field.

If she had just used characters from the medical field where none of the abbreviations or new names for things (ie: to box out is to die), then readers who had no insight to medical jargon would be totally lost and confused. Even without the outside characters, she sometimes explains what some things means.