Sometimes, the companies will have the first aid training for employees, correctly sometimes an accident may be required to have those injury to help correctly and sometimes for treatment that might be slow to arrive.
Sometimes they are properly trained first aid staff because sometimes accidents may have to rescue the injured and properly maintained for some time may be slow to arrive.
Sometimes the company will be trained first aid properly to employees, because sometimes an accident may have those who get hurt to help properly, and sometimes to keep that may come late.