Roger, It's Coumadin not Heparin that's used as rat poison. I've taken both. Thank God, I'm not a rat in that sense.
On Fri, May 1, 2020 at 8:43 AM Roger Critchlow <[email protected]> wrote: > An "In Depth" appears in Science online today, > https://science.sciencemag.org/content/368/6490/455, titled "The mystery > of the pandemic's ‘happy hypoxia’". It mentions the NYTimes OpEd in > passing. > > One suggestion is that the blood is clotting in the lung capillaries, > which interferes with O2 transport by red blood cells while allowing the > plain gas transport of CO2 to continue as normal, hence hypoxic but venting > CO2 normally and not feeling in the least breathless. 24 of 27 hypoxic > patients treated with heparin (a blood thinner also used as a rat poison) > recovered well, 2 are still critical, and 1 was transferred to another > hospital. That's a good preliminary result. > > -- rec -- > > On Fri, Apr 24, 2020 at 11:40 AM Roger Critchlow <[email protected]> wrote: > >> >> >> On Thu, Apr 23, 2020 at 8:32 PM Roger Critchlow <[email protected]> wrote: >> >>> >>> I wonder if any of those cell phone pulsimeters could be upgraded to >>> oximeters with some calibration? >>> >> >> There are a bunch of cell phone pulse oximeter apps that use the cell >> phone flash and camera, but I don't get the feeling that they've been >> calibrated much. It's a lot easier to write the code, call it >> entertainment, and reap the ad revenues that to actually determine what the >> measurement means in the general population. Some apps have even added >> some of the other pulse oximeter functions, perfusion, respiratory pleth, >> Then, again, https://www.ncbi.nlm.nih.gov/pubmed/2921597 says >> "Smartphone-based >> pulse oximetry is not inferior to standard pulse oximetry in pediatric >> patients without hypoxia. Reliability was superior for PBA compared with >> CBA, with more precise agreement for the PBA compared with the CBA. Future >> studies should test pulse oximetry apps in a hypoxic pediatric >> population." That was published in 2018. >> >> There's an interesting series of press releases from UIUC claiming that >> measuring someone's gait (with cellphone accelerometers) over a 6 minute >> walk is enough to get a good estimate of O_2 saturation, because people who >> aren't getting enough O_2 apparently walk funny. >> >> Here's an android app on github, >> https://github.com/YahyaOdeh/HealthWatcher, with some more method >> references, the https://github.com/topics/spo2 listing has a bunch of >> arduino projects, too. >> >> -- rec -- >> > .-. .- -. -.. --- -- -..-. -.. --- - ... -..-. .- -. -.. -..-. -.. .- ... > .... . ... > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam > unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ > -- Frank Wimberly 140 Calle Ojo Feliz Santa Fe, NM 87505 505 670-9918
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