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A comment on Doctors Have Been Measuring Blood Pressure All Wrong, Study Finds. Parent comment

Re:Doctors Have Been Measuring Blood Pressure All Wrong, Stu... by joshvm on Tuesday September 12, 2023 @05:13AM (#37478513)
Maybe a related question, but how good a proxy is cuff pressure for a gold standard method that measures inside an artery? Whenever I've had BP measured for clinical studies (not focused on BP specifically) they used a mix of cuff and continuous fingertip sensors depending on the activity.
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Re:Doctors Have Been Measuring Blood Pressure All Wrong, Stu... by hwillis on Tuesday September 12, 2023 @09:53AM (#37481293)
It's pretty good, about +/- 5 mmHg. At worst it can bump you up/down a category- drinking a couple glasses of water can do that too, and the medical treatment would not be any different. The electric cuff machines can be over twice as variable- about 1/20 person-measurements will read off by >20 mmHg, which is a hugely important difference.
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