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Ntshav oxygen saturation (SpO2)

SPO 2tuaj yeem tawg mus rau hauv cov khoom nram qab no: "S" txhais tau tias saturation, "P" txhais tau tias mem tes, thiab "O2" txhais tau tias oxygen.Cov lus luv luv no ntsuas cov pa oxygen txuas rau hemoglobin hlwb hauv cov hlab ntshav.Hauv luv luv, tus nqi no yog hais txog cov pa oxygen nqa los ntawm cov qe ntshav liab.Qhov kev ntsuas no qhia txog kev ua haujlwm ntawm tus neeg mob ua pa thiab ua haujlwm ntawm cov ntshav khiav thoob plaws hauv lub cev.Cov pa oxygen saturation yog siv los ua qhov feem pua ​​​​los qhia qhov tshwm sim ntawm qhov ntsuas no.Qhov nruab nrab nyeem ntawv rau ib tug neeg laus noj qab nyob zoo yog 96%.

FWM-046

Cov ntshav oxygen saturation yog ntsuas siv pulse oximeter, uas suav nrog lub khoos phis tawj saib thiab ntiv tes cuffs.Lub txaj ntiv tes tuaj yeem clamped ntawm tus neeg mob tus ntiv tes, ntiv taw, qhov ntswg lossis pob ntseg.Tom qab ntawd lub monitor yuav qhia qhov kev nyeem ntawv qhia txog cov pa oxygen hauv tus neeg mob cov ntshav.Qhov no yog ua tiav los ntawm kev siv lub ntsej muag txhais tau lub suab thiab lub suab nrov, uas cuam tshuam rau tus neeg mob lub plawv.Raws li cov pa oxygen concentration hauv cov ntshav poob, lub teeb liab lub zog txo.Lub monitor tseem qhia txog lub plawv dhia thiab muaj lub tswb, thaum lub mem tes nrawm dhau / qeeb thiab qhov saturation siab dhau / qis, lub tswb ceeb toom tau tshaj tawm.

Covntshav oxygen saturation devicentsuas cov ntshav oxygenated thiab ntshav hypoxic.Ob qhov sib txawv yog siv los ntsuas ob hom ntshav no: liab thiab infrared zaus.Txoj kev no hu ua spectrophotometric.Cov zaus liab yog siv los ntsuas desaturated hemoglobin, thiab infrared zaus yog siv los ntsuas cov ntshav oxygenated.Yog hais tias nws qhia tau hais tias qhov loj tshaj plaws haum nyob rau hauv lub infrared band, qhov no qhia tau hais tias siab saturation.Hloov pauv, yog tias qhov siab tshaj plaws nqus tau pom nyob rau hauv cov kab liab liab, qhov no qhia tau tias tsis muaj saturation.

Lub teeb kis tau los ntawm tus ntiv tes, thiab cov kab hluav taws xob kis tau raug saib xyuas los ntawm tus txais.Qee lub teeb no yog nqus los ntawm cov ntaub so ntswg thiab cov ntshav, thiab thaum cov hlab ntsha tau ntim nrog cov ntshav, qhov nqus tau nce ntxiv.Ib yam li ntawd, thaum cov hlab ntsha yog khoob, theem ntawm kev nqus dej poob.Vim hais tias nyob rau hauv daim ntawv thov no, qhov sib txawv tsuas yog pulsating ntws, qhov zoo li qub (piv txwv li daim tawv nqaij thiab cov ntaub so ntswg) yuav raug rho tawm los ntawm kev suav.Yog li ntawd, siv ob lub wavelengths ntawm lub teeb sau nyob rau hauv kev ntsuas, lub mem tes oximeter xam cov saturation ntawm oxygenated hemoglobin.

97% saturation = 97% oxygen ib nrab siab (ib txwm)

90% saturation = 60% oxygen ib nrab siab ( phom sij)

80% saturation = 45% ntshav oxygen ib nrab siab (mob hypoxia)


Post lub sij hawm: Nov-21-2020