Measuring blood pressure for less than a dollar using a phone
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Re: Measuring blood pressure for less than a dollar using a phone
#2I miss the SpO2 sensor on my old S5. It used to work up until a couple years ago when S Health took out the functionality.
Re: Measuring blood pressure for less than a dollar using a phone
#3Super clever. But one of the comments:
This measures blood pressure in the fingers. There is no consistent way to translate that to a brachial artery blood pressure, which IS 'close enough' to the aortic valve. No calculations are needed, because the bloods pressure at the brachial artery will be only a few mm/Hg lower than it is at the aorta.
But on the way to the fingers, the blood pressure lowers, and a multitude of factors can influence by how much. To be clear, all of the influences that alter the peripheral blood pressure will alter core blood pressure. But the degree of alteration is going to be far more extreme and unpredictable the farther away from the heart you go.
Re: Measuring blood pressure for less than a dollar using a phone
#4I miss the SpO2 sensor on my old S5. It used to work up until a couple years ago when S Health took out the functionality.
Oh Gawd.
My wife did not feel well last year and thought her pulse was going up. I figure I'd reassure her quickly (or notice an issue) with my Note 8.
Unbeknowst to me, some samsung update put the hardware functionality behind some health app that wanted to setup a tracking profile and two factor authentication and my email and my phone and name and details and preferences and goals and 12 point health plan and whatnot.
By the end I was the one with anxiety attack. I'm still livid when I think about it. I'm not a violent or profane man but... I have some thoughts reserved for people who planned, approved and implemented that. Not all evil is big evil. Little evil is evil too (Note for all fellow software engineers here :)
Re: Measuring blood pressure for less than a dollar using a phone
#5I miss the SpO2 sensor on my old S5. It used to work up until a couple years ago when S Health took out the functionality.
Oh Gawd. My wife did not feel well last year and thought her pulse was going up. I figure I'd reassure her quickly (or notice an issue) with my Note 8. Unbeknowst to me, some samsung update put the hardware functionality behind some health app that wanted to setup a tracking profile and two factor authentication and my email and my phone and name and details and preferences and goals and 12 point health plan and what…
If just for rate, surely a finger and a 15 or 30 second measurement is at least as good?
Obviously you wont get oxygenation though.
Re: Measuring blood pressure for less than a dollar using a phone
#6I miss the SpO2 sensor on my old S5. It used to work up until a couple years ago when S Health took out the functionality.
Oh Gawd. My wife did not feel well last year and thought her pulse was going up. I figure I'd reassure her quickly (or notice an issue) with my Note 8. Unbeknowst to me, some samsung update put the hardware functionality behind some health app that wanted to setup a tracking profile and two factor authentication and my email and my phone and name and details and preferences and goals and 12 point health plan and what…
An open source app off Fdroid like HeartBeat may or may not have a similar error rate:
https://github.com/berdosi/HeartBeat
I think I picked up a dedicated unit finger pulse oximeter for like $20.
FWIU Apple Watch is one product with FDA approval as a medical device (ECG Electrocardiogram) for detection of AFib Atrial Fibrillation and Parkinsons.
Medical device design > Pathway to clearance or approval: https://en.wikipedia.org/wiki/Medical_device_design#Pathway_...
Re: Measuring blood pressure for less than a dollar using a phone
#7There are also low cost Smartphone fundoscopy devices for eye / retinal health chart images:
https://www.aao.org/eyenet/article/smartphone-funduscopy
You can't use AI to classify and predict e.g. diabetic retinopathy from retinal images unless you have retinal images in the chart, over time.
Re: Measuring blood pressure for less than a dollar using a phone
#8I’m not a doctor but my personal belief is that hypertension is over diagnosed. A lot of people have “white coat” syndrome, and pharma companies love to get people on never-ending prescriptions.
Re: Measuring blood pressure for less than a dollar using a phone
#9I’m not a doctor but my personal belief is that hypertension is over diagnosed. A lot of people have “white coat” syndrome, and pharma companies love to get people on never-ending prescriptions.
I’m not a doctor but my personal belief is that hypertension is over diagnosed. A lot of people have “white coat” syndrome, and pharma companies love to get people on never-ending prescriptions.
Thanks for letting us know that you are in fact not a doctor. Because your belief is patently wrong.
Source: I am a doctor.
https://baptisthealth.net/baptist-health-news/high-blood-pre...
Re: Measuring blood pressure for less than a dollar using a phone
#10I’m not a doctor but my personal belief is that hypertension is over diagnosed. A lot of people have “white coat” syndrome, and pharma companies love to get people on never-ending prescriptions.
I got a new doctor recently and he agrees. He also told me to take by BP multiple times a day several days a week, for several weeks. To base high blood pressure on one reading at the doctors office every few months is won’t get you the statistical significance you need. And also to record if you drink coffee that day, if you exercised before a reading, slept well the night before, etc. BP can vary greatly from all those daily factors.