When working in a facility, never skip or make up a number for blood pressure to add to patients chart. This could be deadly. If you are using a electronic cuff and get a reading that is way too high to be possible, or get a reading that is way out of range of the patients usual number, you will have to do it manually. If you are still getting an unusual reading it is time to get the hall nurse and they will do a BP check to see if your findings were correct. This can mean the difference between your patient living or dying. Keep this in mind while doing all your vital checks and be a responsible caregiver!