On 21/09/2017 15:49, Malcolm Race wrote:
On 21/09/2017 15:43, Harry Bloomfield wrote:
I have the doctors panicking over my high blood pressure. So I dug out
a digi BP monitor we had for a few years #1. That had a problem with
its over pressure safety valve, which I repaired whilst waiting for a
new one to be delivered. It's readings were completely inconsistent,
so today (still waiting for #2 to arrive), I went out and bought an
over the counter #3.

#3 (a cuff auto digital) seems to provide consistent values, no rapid
wild variations, but how to be sure the displayed readings are correct?

I have already been advised that any of the larger pharmacists should
have a device to check the calibration of BP monitors, but I wonder if
there might be a way to check it at home?

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'

I have that too. But on one occasion, I sat in the waiting room with a
book for an hour and a half and took readings every 20 minutes or so.
These pretty much converged on the values I get from an Amazon ABPM when
not doing much.