I think the purpose of taking BP in a regular doctor's visit is also just screening, not to make a final diagnostic decision. If it's normal they can move on, i

I think the purpose of taking BP in a regular doctor's visit is also just screening, not to make a final diagnostic decision. If it's normal they can move on, if not they can do some followups to determine whether it's genuinely an issue. Very many basic screening tests work like that: they're effective at determining something is not an issue, but not at definitively saying it is. Personally I definitely have some degree of "white coat" syndrome, doctors offices just put me on edge for whatever reason. Several years ago as a healthy 30 year old at a routine office visit, the doctor found my blood pressure to be right on the upper bound of normal. She didn't immediately take any action on it, she just told me to stop by a local pharmacy and use their automatic machine a few times over the following weeks, and to enter the numbers in her organization's medical chart app. I did, it was normal, she sent me an email "thanks, looks good!". Case closed.