An OSHA recordable is an injury, illness, or death that OSHA deems to be recordable under its recordkeeping regulations. The answer to your question is that giving a medication, dose or a treatment that requires a prescription makes an injury recordable under OSHA guidelines.
System Performance : Where integrated graphics borrow from the main system memory to provide the frame buffer, what actually holds the content of what is displayed, Dedicated Graphics have their own frame buffer. This results in the graphics card being able to make better use of it's resources.
The relationship between display resolution and pixels per inch is a mathematical one. Put it simply, a screen A can have the same number of pixels as screen B, but screen B can have a higher PPI if its diagonal screen size is lesser.