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I didn't reverse-engineer the protocol for my blood pressure monitor in 24 hours

(james.belchamber.com)
327 points jamesbelchamber | 2 comments | 11 Nov 25 21:25 UTC | HN request time: 0s | source
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cestith ◴[11 Nov 25 21:45 UTC] No.45893306[source]▶
Regarding white coat hypertension, the shot isn’t always necessary. Some people’s blood pressure just goes up from the stress of the clinical setting.
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SchemaLoad ◴[11 Nov 25 22:16 UTC] No.45893635[source]▶
If you've got one of these machines at home it seems you really want to run it a couple of times. Often I find the first reading I get is quite alarming but then if I sit for a bit longer and run it another 1-2 times I get a very normal reading.
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1. loeg ◴[11 Nov 25 22:21 UTC] No.45893690[source]▶
Also, they can read high if the batteries are low.
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2. professoretc ◴[12 Nov 25 19:16 UTC] No.45904781[source]▶
I wonder why that would be? Presumably if the batteries are low then the pressure the machine "thinks" it's inflated the cuffs to is higher than the actual pressure...