Opanga malamulo a demokalase adawonetsa kukhudzidwa ndi kusiyana kwamitundu komwe kungathe kuwerengedwera (kuyitcha "nkhani ya moyo ndi imfa") miyezi iwiri kuchokera pamene US Food and Drug Administration (FDA) idapereka chenjezo pagulu pazida izi Lachisanu.Vomerezani “zopereŵera” zawo.
Kwa nthawi yoyamba m'zaka makumi angapo, ochita kafukufuku apeza zolakwika zomwe zingatheke pogwiritsira ntchito chipangizochi ndi anthu amitundu, ndipo kafukufuku watsopano wapanga deta yatsopano yowunikira vutoli ndipo anapereka chenjezo patapita miyezi ingapo.Posachedwapa, ofufuza ochokera ku yunivesite ya Michigan adasindikiza kalata mu Disembala 2020 ya New England Journal of Medicine, ndipo adapeza kuti kuthekera kwakusowa kwa hypoxemia ndi oximeter kunali katatu kuposa kwa odwala akuda.
"Chonde dziwani kuti zinthu zambiri zimatha kukhudza kulondola kwa kuwerengera kwa pulse oximeter, monga kusayenda bwino, mtundu wa khungu, makulidwe a khungu, kutentha kwa khungu, kugwiritsa ntchito fodya, komanso kugwiritsa ntchito misomali," chenjezo la FDA linawerenga.
Sichimatchula momveka bwino kusiyana kwa mafuko pakulondola kwa zida, zomwe zingakhumudwitse madokotala ndi odwala omwe amayesa kukopa chidwi cha vutoli.
"Ndikoyenera kudziwa kuti mawu akuti 'race' kapena 'race' sanatchulidwe muzolankhulana za FDA," atero a Thomas Valley, dokotala wosamalira odwala kwambiri m'mapapo komanso wolemba kalata ya NEJM.“Panthawi yomweyi, tidapeza kuti pali kusiyana pakati pa odwala akuda ndi azungu.Sitikudziwa chifukwa chake pali kusiyana kotereku, timaganiza kuti ndi khungu.
Munthawi ya mliri wa Covid-19, ma pulse oximeter omwe amagwiritsidwa ntchito kuyeza kuchuluka kwa okosijeni akhala chida chofunikira kwambiri chachipatala chifukwa kachilomboka kamasokoneza kuthekera kwachilengedwe kwa thupi kupanga mpweya.M’zipatala, zida zimagwira ntchito yofunika kwambiri popanga zisankho pankhani ya chisamaliro cha odwala.Kumapeto kwa kasupe watha, madokotala angapo atanena kuti zingakhale zothandiza kusunga chipangizocho kunyumba (mwachitsanzo, mofanana ndi momwe anthu angafune kusunga choyezera kutentha mu kabati ya mankhwala), mtundu wa chipangizocho unayamba. kuwuluka pamashelefu m'ma pharmacies ndi Amazon ndi masamba ena apaintaneti adagulitsidwa mwachangu.
Komabe, pepala la December watha (ndi maumboni ake a mndandanda wa maphunziro oyambirira omwe akulemba vuto lomwelo, kuphatikizapo mapepala omwe adasindikizidwa mu 2005) adadabwitsa ofufuza ndi madokotala, omwe adanena kuti sanapeze mankhwalawa kuti aphunzire za vutoli.Kukhumudwa ndi kuthetsa kugonana.15 zaka.
Utibe Essien, wothandizira pulofesa wa zamankhwala pa yunivesite ya Pittsburgh School of Medicine, anati: “Sindingakhulupirire kulondola kwa chiwerengerochi, ndipo kudalira zipangizo zomwe zingakondere magulu ena a anthu kumasokoneza kwambiri.”, Uzani STAT kumayambiriro kwa mwezi uno.
Poyankha madandaulowa, a William Maisel, mkulu wa Office of Product Evaluation and Quality of the FDA's Center for Equipment and Radiological Health, adauza STAT kuti bungweli likuwunika zomwe zilipo ndikuwunikanso kafukufuku wina ngati kuli kofunikira.Ananenanso kuti a FDA ali ndi chidaliro kuti ma oximeter okhudzana ndi chipatala ali ndi digiri yapamwamba yolondola, koma adawonjezera kuti pazida zogulitsidwa pa intaneti komanso m'ma pharmacies, izi sizingakhale zolondola, ndipo bungwe silinawunikenso kapena kuvomereza izi.
Michael Schuddin, katswiri wa pulmonologist ku Michigan State University komanso wolemba kalata ya NEJM, adati ali wokondwa kuti FDA yatsindika m'mawu ake kufunikira kosadalira kwambiri ma pulse oximeters kuti apange zisankho zachipatala.Komabe, adawonjezeranso kuti akukhulupirira kuti kusatchula zamtundu ndi "mwayi wophonya".
Iye anati: "Poganizira za malire a nkhaniyi, ndikukayikira kuti FDA ikufuna kukhala tcheru kuti idziwe zambiri zokhudza kusiyana kwa mitundu pa kulondola kwa pulse oximeter, ndikuyang'ana kwambiri pa nkhani ya kulondola kwa pulse oximeter."
Erin ndi mtolankhani waukadaulo wazachipatala ku California komanso wolemba nawo kalata ya STAT Health Tech.
Statnews, kodi tikugwira ntchito ya ana tsopano?Biology ndi physics amaphunzitsidwa m'makalasi apamwamba kusukulu ya pulayimale, koma wolemba nkhaniyi sakuwoneka kuti amadziwa biology ndi physics.
Monga momwe wolemba ndemanga wina ananenera, ndi chinthu chabwino kuti wolembayo asinthe nkhaniyo kuchokera ku "thupi lotulutsa mpweya" kupita ku "thupi lopanga okosijeni".
Kuwala kumatsekedwa / kutengedwa ndi pigment.Mtundu umene umawona mu utoto ndi mtundu womwe umawonetsedwa ndi utoto.Choncho, zomwe mukuwona ndi zakuda, zomwe zikutanthauza kuti mitundu yoyambirira muwonetsero si mitundu yoyambirira.Zoyera, mitundu yonse imawonekera.Oximeter imagwira ntchito pansi pa kuwala, kotero imakhudzidwa kwambiri ndi kuwala kotsekedwa / kuwala koyamwa.
Zikuoneka kuti olemba nkhaniyi sanalandirebe biology ndi physics, choncho ayenera kukhala ndi maphunziro oyambirira okha.Popeza kuti masukulu a sekondale aang’ono ndi a kusekondale ndi maphunziro okakamiza, kuphunzitsa biology ndi physics, kungatithandize kulingalira ngati tingagwire ntchito ya ana apa, kotero kuti ana a pulayimale akhoza kulemba nkhaniyi.Kodi tili ndi chilolezo cha makolo athu?
Kuyeza kwa oxygen kwa chala kumagwiritsa ntchito kuwala kwa infrared kuti azindikire kuchuluka kwa okosijeni, chifukwa hemoglobin ya okosijeni imatenga kuwala kwa infrared.SO: Kutengera ndi kuzindikira kuwala, chipangizochi sichitha kwa anthu omwe ali ndi khungu lakuda.Izi zakhala zikudziwika kwa zaka zoposa 20, koma palibe njira zomwe zatengedwa kuti zisinthe.A FDA ayenera kunena momveka bwino izi, zomwe zingalimbikitse kukula kwa (chala) mamita okosijeni, chifukwa DOES imagwira ntchito bwino kwa anthu a khungu lakuda.“Kusankhana mitundu” pamutu wa nkhaniyi ndi mawu osonyeza kuti pali vuto linalake (lolingaliridwa).
Mlembi, ndikuchita manyazi chifukwa cha kuchuluka kwa magawano amitundu.Nkhani yanu imachepetsa mtundu wa statnews.Komabe, panthawiyo simunali nokha pochita izi mu statnews.Mwina mtundu wa statnews ukuchepa.
Ndi liti pamene zinthu zaufuko za chipani cha Liberal zinasiya pamene zinapenga?Race oximeter?Zili ngati racist covid-19.Liberalism ndi matenda amisala owopsa.Ayi, anthu aufulu sali atsankho.Amachitira aliyense mofanana.Amadana ndi aliyense mwalamulo ku United States.
Oximeter imagwiritsa ntchito kuwala kowala kuyeza mpweya.Ngati muli ndi zinthu zomwe zimalepheretsa kuwala (monga utoto, kupaka misomali, etc.), kuwala kowala kumakhudzidwa.Kulingalira pang'ono kusiyana ndi kusankhana mitundu.
Madokotala mbuli amene amathirira ndemanga pa tsankho laufuko ali opusa.Malamulo a physics ndi akhungu pamtundu ndipo amayendetsedwa ndi malamulo a physics.Pamene pulofesa / mphunzitsi amaphunzitsa chidziwitso choyambirira cha kufalitsa kuwala, kusokoneza, ndi kuyamwa, akuwoneka kuti akugona m'kalasi.Sindikufuna kuti dokotala wopusa ngati iyeyo andithandize.
Wolembayo akuyenera kufufuza zambiri za momwe oximeter imagwirira ntchito, osati chiwembu chamtundu wa nyambo.
Kodi kusungunuka kwa khungu la munthu ndi bedi la misomali kumagwira ntchito yokhudzana ndi kuyamwa komanso kupatsirana?Ndikukumbukira nkhani yaposachedwa yofalitsidwa mu NEJM (New England Journal of Medicine) inafunsa funso ili.Monga munthu wokonda sayansi komanso dokotala wochita bwino, ndimakonda kuganizira malingaliro ndi luntha lililonse lomwe lingandithandize kuwunika odwala.Kuganizira kwanga koyamba ndikuti kuthekera kwa kuwerengera kwa pulse oximeter kudzakhudzidwa ndi kuchuluka kapena mphamvu ya melanin pakhungu ndi misomali.Ndi biology ndi physics!Mayamwidwe a kuwala kwa ultraviolet kudzera pakhungu komanso momwe amakhudzira kupanga ndi kagayidwe ka vitamini D pakhungu kukuwonetsanso mfundoyi.Melanin imatha kuchepetsa kuyamwa kwa kuwala kwa UVB pakhungu!Ndikofunika kumvetsetsa ndikumvetsetsa izi.
Si sayansi yonse yomwe ili "yatsankho"!Pokhapokha komanso mpaka titawerenga, kuphunzira ndi kuphunzira "Sayansi", tiyenera kusamala kuti tisaganize zolakwika!
Nthawi yotumiza: Mar-03-2021