4 ms·
Super 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 pre
by mhb 3y ago
Super 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.
- devjab 3y agoThe way ADHD medicine works in Denmark, I need to get my blood pressure measured at my doctors office every 3 months, and a while back when it was around the limit of being too high, they wanted me to do it at home for a period. So I asked if I could use one of these finger things, or even just a wrist thing and their answer was a clear no. Exactly because the number is essentially useless medically by our national guidelines. Sometimes our national guidelines are a little outdated. The ADHD medicine type that worked the best for me is still only approved for quitting smoking (which is why I don’t use it because that means it’s often out of stock since it’s not a “vital” medicine that gets priority stock”) but also goes to show that sometimes we’re a little slow to approve things. So I don’t know if these finger readers are in that category and will eventually become viable, or if they really don’t work. But I do think it’s worth looking into before you rely too much on them.
- ktta 3y agoWhat's the name of the medication?
- bladderlover23 3y agoSounds like Bupropion.
- mxmilkiib 3y agoIn the UK, my psychiatrist has been taking my pressure every 6 weeks when I go back as I try to find an ADHD drug and dosage that works. This has been the case for all the stimulant type meds I've tried. I'm now finishing up my 6th week on the basic dose of atomoxetine, the first non-stimulant I've tried, and I'm guessing I'll not have my pressure tested later this week. I had off-book buproprion, not for ADHD but depression and anxiety, from the same psychiatrist from several months before they gave me an ADHD diagnosis, and didn't get my pressure tested then. Funnily enough I found that double the max UK dose (600mg/day, an accidental misreading of the dosage wording after a few months) worked perfectly with my so-called rejection sensitivity and hypermentalisation. Whether those symptoms were in some part generated by ADHD, it is possible, and whether my ASD or ADHD somehow gives me a buproprion hyposensitivity is questionable (as I have heard that ND folk can more often have a hyper and hypo sensitivity to drugs), but it didn't help my attention. I had to stop that when a) the manufacture of buproprion was halted due to detected impruties and b) so I could get to try ADHD meds. It made me very sad because I knew I would regress, I have indeed been emotionally unstable and prone to crises since and broke up with my partner in large part due to this.
- aszantu 3y agosome adhd symptoms are connected to depression and cptsd as far as I read. Might be one reason, the meds don't work for you. Does caffeine agitate or calm you down? That might be one of the clues - but I'm just starting out on the journey
- ars 3y agoCan this be used to measure trends in blood pressure? Or are do restrictions to the fingers very?
- hackernewds 3y agoThat is very interesting, since even in hospitals they have a finger squeeze blood pressure. Or what about taking blood pressure on the biceps.
- cinntaile 3y agoMaybe the point in hospitals isn't to have an accurate measure of blood pressure but to notice (bigger) changes in blood pressure? The brachial artery that the parent mentions is located in the biceps by the way.
- martyvis 3y agoAre you sure they are measuring blood pressure on the fingers? My experience (just spent 21 days in a major hospital) and BP is always measured with a cuff. The finger sensor is for oxygen saturation and pulse.
- GordonS 3y agoThose finger devices don't measure blood pressure, they measure pulse and oxygen saturation.
- sandworm101 3y agoA hospital is more interested in short-term changes in pressure than it is the actual number. A finger sensor will definitely detect when someonez's pressure crashes or rapidly elevates. Same is true for first responders dealing with trapped people (car crashes). The exact number will be wildly inaccurate given they arent in a proper seated position, but the delta over time is what matters.
- deleted 3y ago[deleted]
- tgv 3y agoMy hands have periods where they go cold and white; possibly not Raynaud's, but something similar. I suppose that wouldn't help blood pressure detection.
- theonlybutlet 3y agoI just think of how the nurse told me, the other day, of their struggles to draw blood from a finger prick test for many patients when the weather's cold and circulation is poor. It may prove useful on some future study relating to it's efficacy on specific needs, where it may be good enough.
- chr1 3y agoThe article says it can differ from cuff device reading by as much as 8mmhg, but cuff device itself can have lerger error if it is not weared on the hand correctly. So if the figure in the article is correct, this would be very useful for people living alone to quickly get approximate measurment.