Qhov tseem ceeb ntawm kev saib xyuas cov ntshav oxygen rau kev saib xyuas menyuam yaus tsis tuaj yeem tsis quav ntsej. Kev saib xyuas cov ntshav oxygen feem ntau yog siv los ntsuas lub peev xwm ntawm oxyhemoglobin ua ke nrog cov pa oxygen hauv cov ntshav ntawm cov menyuam yug tshiab raws li feem pua ntawm tag nrho cov peev xwm hemoglobin uas tuaj yeem ua ke nrog ntshav, uas yog, ntshav oxygen saturation. Qhov no muaj qhov cuam tshuam tseem ceeb rau kev nkag siab txog kev ua pa thiab mob plawv ntawm cov menyuam yug tshiab.
Ua ntej tshaj plaws, kev saib xyuas cov ntshav oxygen tuaj yeem pab tshawb xyuas sai sai seb cov menyuam yug tshiab puas muaj cov pa oxygen txaus. Yog tias cov ntshav oxygen saturation qis dua li ib txwm muaj (feem ntau 91% -97%), nws yuav qhia tau tias tus menyuam yug tshiab yog hypoxic, uas yuav muaj kev cuam tshuam tsis zoo rau kev ua haujlwm ntawm lub plawv, hlwb, thiab lwm yam kabmob tseem ceeb. Yog li ntawd, los ntawm kev saib xyuas cov ntshav oxygen, cov kws kho mob tuaj yeem kuaj xyuas thiab ntsuas kev kho mob kom tsim nyog nyob rau lub sijhawm kom tsis txhob muaj kev puas tsuaj ntxiv.
Txawm li cas los xij, physiological yam ntxwv ntawm cov me nyuam mos ua rau cov ntshav oxygen xyuas kuj nyuaj. Lawv cov hlab ntsha me me thiab cov ntshav khiav qeeb qeeb, uas yuav ua rau kom tau txais cov ntshav oxygen cov paib tsis ruaj khov thiab pheej ua yuam kev. Tsis tas li ntawd, cov kab mob ua pa thiab cov hlab plawv ntawm cov menyuam yug tshiab tseem tsis tau paub meej, uas txhais tau hais tias thaum lawv ntsib qee yam kab mob, cov kev hloov pauv hauv cov ntshav oxygen saturation yuav tsis pom tseeb txaus, ua rau kev saib xyuas nyuaj dua.
Narigmed's ntshav oxygen thev naus laus zis tau ntsuas qhov ntsuas tau zoo nyob rau hauv qhov tsis muaj zog perfusion ntawm 0.3% thiab 0.025%, nrog qhov raug siab heev, thiab tshwj xeeb tshaj yog haum rau kev ntsuas cov menyuam mos.
Post lub sij hawm: Mar-06-2024
