My reading via wrist cuff at the dentist’s office was significantly higher than 215, but we all did nothing because it was obvious that there was no heart related event or distress of any kind.
Nevertheless, a couple of weeks later I went to a heart hospital to get a check-up. EKG had an unusual reading. Head of cardiology wanted to crack my chest open in order to insert a stent. I refused and went for a treadmill test. After one hour on the treadmill, the doctors & nurses said that I was only the second patient in history at that heart hospital who did not significantly raise their BP on the treadmill test. The other was a highly competitive marathon runner. Yet the French Canadian Head of cardiology (lead heart surgeon) still wanted to crack open my chest & place a stent in me. Another cardiologist asked me to come into her office and, after closing the door, stated she and others had reviewed my file and suspected that the unusual EKG reading was due to my heart being unusually strong. She asked if I had trained as/like an Olympic athlete. I told her that I had for a couple of decades; she said that explained the EKG reading = my heart was unusually strong & I was in great shape.
Soon thereafter, the French-Canadian Head of Cardiology heart surgeon moved on to the next city.