What we do in between patients

PTR

What does this abbreviation FFMN stand for?

Registrar

"Fasting from midnight".

PTR

I wouldn't abbreviate midnight as MN.  I'd just write FFM.

Consultant

But that would be "Fat free mass".

PTR

What's that?

Consultant

It's the old-fashioned way of saying "Lean body mass", your weight if you weren't obese.

Registrar

Oh, by "mass" I thought you meant a church service, one just for skinny people.

Consultant

So a fat free mass would be where you give the anorexic the wafer and she just vomits it back up again.