Malcolm Race laid this down on his screen :
Take it to the Surgert and compare the reading with one taken immediately
afterwards with a surgery machine.
I have what the doctor describes as 'White coat syndrome'

Me too, to some extent, even when I measure it myself :-?


Apressure os say 1292/120 translates into n143/90 at home. When I go in I
take a series of recent reaqdings with me.

That is my plan, but I tried that a couple of weeks ago and the values
I noted were way below correct values, down in the normal range. I'm
keen not to repeat providing them with erroneous data, hence my
question of how to check the calibration at home to be sure.