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Measuring blood pressure for less than a dollar using a phone

arstechnica.com

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Re: Measuring blood pressure for less than a dollar using a phone

#31
Researchers discovered awhile back you can monitor blood pressure via the earlobes.

Not only that, you can monitor it during activity during movement, without requirement to sit still.

So I am really surprised some startup has not come up with a special earbud that also monitors blood pressure via a clip extension and broadcast via bluetooth/ANT+

Would be huge with athletes, especially with an aging population.

Re: Measuring blood pressure for less than a dollar using a phone

#32
post #31

Researchers discovered awhile back you can monitor blood pressure via the earlobes. Not only that, you can monitor it during activity during movement, without requirement to sit still. So I am really surprised some startup has not come up with a special earbud that also monitors blood pressure via a clip extension and broadcast via bluetooth/ANT+ Would be huge with athletes, especially with an aging population.

The main issue would be the large and heavy battery

Re: Measuring blood pressure for less than a dollar using a phone

#33

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.

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 t…

But if those daily factors are happening all the time at some point isn’t that blood pressure measurement the one that matters? If I can get to normal bp by extreme efforts but spend most of my time in mild hypertension I might need to treat it somehow.

Re: Measuring blood pressure for less than a dollar using a phone

#34

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.

The recommendation for bp reading is: Sit in a comfortable chair with your back supported for at least 5 minutes before your reading - https://www.cdc.gov/bloodpressure/measure.htm However, this doesn't happen. In US, you check in, sit in the waiting area, then a nurse takes you in, checks weight on the way to the room, then takes bp as soon as you sit. All done in 90 seconds to 2 mins. I thought I had high BP, but w…

Huh, I had no idea it was like that in the US. Where I live doctors measure blood pressure during the consults. There is no nurse.

Re: Measuring blood pressure for less than a dollar using a phone

#35
post #9

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.

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...

I had one doctor do a lipid test, then tell me how horrible my numbers are and that I needed to get on meds, stat. Took the lipid test again with a different doctor, and the numbers were fine. How come? First "doctor" forgot that it was supposed to be a fasting test, took my blood shortly after a fried fish dinner, and charged me $400+ for a pointless scare. And this is just a recent example. I could go on and on with personal examples of drive-by medicine. The overwhelming majority of "doctors" all have a favorite hammer, and the rest of us end up getting nailed with it.

Re: Measuring blood pressure for less than a dollar using a phone

#36

Earlier quoted context omitted.

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.wi…

My Apple Watch detected an AFib about a year and a half ago. Was mildly freaked out at the time but glad that I got the alert. Nothing major, thankfully. Was on a mostly plant-based diet (no meat at all) and wasn't getting enough iron. Easy fix.

Re: Measuring blood pressure for less than a dollar using a phone

#37
post #32
post #31

Researchers discovered awhile back you can monitor blood pressure via the earlobes. Not only that, you can monitor it during activity during movement, without requirement to sit still. So I am really surprised some startup has not come up with a special earbud that also monitors blood pressure via a clip extension and broadcast via bluetooth/ANT+ Would be huge with athletes, especially with an aging population.

The main issue would be the large and heavy battery

Integrate into wireless headsets? A single-purpose device could have most components on a neckband, otherwise.

Re: Measuring blood pressure for less than a dollar using a phone

#38
post #9

Earlier quoted context omitted.

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...

I had one doctor do a lipid test, then tell me how horrible my numbers are and that I needed to get on meds, stat. Took the lipid test again with a different doctor, and the numbers were fine. How come? First "doctor" forgot that it was supposed to be a fasting test, took my blood shortly after a fried fish dinner, and charged me $400+ for a pointless scare. And this is just a recent example. I could go on and on wit…

https://www.health.harvard.edu/blog/farewell-fasting-cholest...

I don't know the exact details of your case so not responding to that, but routine lipid testing does not need to be fasting even though the test is often marked as a "fasting" test. The only number that is acutely affected is triglycerides. Some labs still call it a fasting test - but we do not routinely advise patients to fast before a lipid screen since the main screening numbers are LDL and HDL.

It gets more complicated with triglycerides. A general sensible approach is that if triglycerides are over 400 on a non-fasting test to repeat with a fasting test.

> The overwhelming majority of "doctors" all have a favorite hammer,

In this case the diagnostic and management algorithm is pretty straightforward, unfortunately not all doctors are that good. Not sure if "overwhelming majority." is the case.

Re: Measuring blood pressure for less than a dollar using a phone

#39

Earlier quoted context omitted.

The recommendation for bp reading is: Sit in a comfortable chair with your back supported for at least 5 minutes before your reading - https://www.cdc.gov/bloodpressure/measure.htm However, this doesn't happen. In US, you check in, sit in the waiting area, then a nurse takes you in, checks weight on the way to the room, then takes bp as soon as you sit. All done in 90 seconds to 2 mins. I thought I had high BP, but w…

Huh, I had no idea it was like that in the US. Where I live doctors measure blood pressure during the consults. There is no nurse.

In many clinics in the US it won’t even be a nurse it will be an MA. The quality is highly variable but I don’t think it matters the staff members, taking a BP with a machine is not hard and can be trained, this is an overall issue with clinic management and quality - which is unfortunately highly variable.

Re: Measuring blood pressure for less than a dollar using a phone

#40
post #38

Earlier quoted context omitted.

I had one doctor do a lipid test, then tell me how horrible my numbers are and that I needed to get on meds, stat. Took the lipid test again with a different doctor, and the numbers were fine. How come? First "doctor" forgot that it was supposed to be a fasting test, took my blood shortly after a fried fish dinner, and charged me $400+ for a pointless scare. And this is just a recent example. I could go on and on wit…

https://www.health.harvard.edu/blog/farewell-fasting-cholest... I don't know the exact details of your case so not responding to that, but routine lipid testing does not need to be fasting even though the test is often marked as a "fasting" test. The only number that is acutely affected is triglycerides. Some labs still call it a fasting test - but we do not routinely advise patients to fast before a lipid screen sin…

The triglycerides were the concern, and it is infuriating. Any other business would at least express come contrition and issue a refund, or at least an apology, but not doctors. If anything, she was upset that I wouldn't make her next appointment. We have so many olds and self-abusers in this country that medicine has become the new religion--with doctors as the new priests; pharmaceuticals and procedures as the new sacraments. How can we hold the priest responsible for the parishioner's sin? After all, the parishioner did not eat the right things, or did not exercise enough, or was tainted with the original sin of his own genetics.

edit: The mentality is boldly duplicitous. When you challenge their diagnoses on their own turf, they are men and women "of science", and you are a fool to yourself to question them, but when the mistakes are laid bare; being discussed inside of a courtroom--see how fast the appellation changes: from "man of science" to "humble practitioner".

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