

I’m a GP, here’s my opinion
Can’t have eaten/drank anything for the last half hour
- in principle could alter your BP but I wouldn’t worry too much unless it’s quite a large meal
Feet flat on the floor
- yes, this is important
Lying down but sitting up
- for some purposes docs want lying/sitting/standing but for home measurements do them sitting
Back against the chair
- yes
Don’t cross your legs/ankles
- yes, feet flat on the floor
Only use your left arm
- myth, if there is a significant difference between your left and right arms there is something funky going on with your subclavian arteries
Hand facing upward/downward
- not super important
Keep your arm down/raised
- keep your arm relaxed, ideally resting on a table or desk at close to 90deg or hanging straight down
Most important is be relaxed, sit still, don’t move your arm, if you get a high reading calm yourself and take it once more then leave it.
When I’m taking a BP in clinic the most important thing I do most of the time is distract the patient from the machine with some patter as for most people the biggest confounding factor is stressing about what the reading will be, I don’t correct posture etc unless they are substantially moving their arm around.
Like every new technology that is hailed as changing everything it is settling into a small handful of niches.
I use a service called Consensus which will unearth relevant academic papers to a specific clinical question, in the past this could be incredibly time consuming.
I also sometimes use a service called Heidi that uses voice recognition to document patient encounters, its quite good for a specific type of visit that suits a rigid template but 90% of my consults i have no idea why they are coming in and for those i find it not much better than writing notes myself.
Obviously for creative work it is near useless.