By gluing two papers one at the bottom or buy those long papers
Checked out
Checked out is not domain specific language. When talking about medical visits, checked out is an informal term for having a medical evaluation. A check-up is a routine procedure done yearly that is normally called a physical in the medical field. A fall is a fall. There is no other domain specific vocabulary that can change this. Clinic and injuries are all typical domain specific terms that can be applied in medical situations.
John should make sure he trains the workers better, including how to fix the machine.
The passage is in third person because it refers to her as Cathy or "her"
