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Ntshav oxygen qib yog dab tsi?

Ntshav oxygen theem (arterial ntshav oxygen cov ntsiab lus) qhia txog qib oxygen tam sim no hauv cov ntshav ntws los ntawm cov hlab ntsha ntawm lub cev.Kev kuaj ABG siv cov ntshav los ntawm cov hlab ntsha, uas tuaj yeem ntsuas ua ntej nws nkag mus rau tib neeg cov ntaub so ntswg.Cov ntshav yuav muab tso rau hauv lub tshuab ABG (cov ntshav ntsuas ntshav), uas muab cov ntshav oxygen qib hauv daim ntawv ntawm oxygen ib nrab siab (oxygen ib nrab siab).

Hyperoxaemia feem ntau kuaj pom siv ABG kuaj, uas txhais tau tias cov ntshav oxygen qib siab tshaj 120 mmHg.Qhov kev ntsuas ntawm arterial oxygen siab (PaO2) ntsuas siv cov roj ntsha ntshav siab (ABG) yog li 75 txog 100 mmHg (75-100 mmHg).Thaum qib qis dua 75 mmHg, qhov mob no feem ntau hu ua hypoxemia.Qib qis dua 60 mmHg yog suav tias yog qhov tsawg heev thiab qhia tias yuav tsum tau muaj cov pa oxygen ntxiv.Cov pa oxygen ntxiv yog muab los ntawm lub tog raj kheej oxygen, uas txuas nrog lub qhov ntswg los ntawm lub raj nrog lossis tsis muaj lub ntsej muag.

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Cov ntsiab lus oxygen yuav tsum yog dab tsi?

Cov ntshav cov pa oxygen kuj tuaj yeem ntsuas tau siv lub ntsuas pulse oximeter.Cov pa oxygen ib txwm nyob rau hauv pulse oximeter feem ntau yog 95% txog 100%.Tsawg dua 90% ntawm cov ntshav oxygen ntshav qis (hypoxemia).Hyperoxaemia feem ntau yog kuaj los ntawm ABG kuaj, uas txhais tau tias cov ntshav oxygen qib siab tshaj 120 mmHg.Qhov no feem ntau yog nyob hauv tsev kho mob, thaum tus neeg mob raug kev kub ntxhov ntawm cov pa ntxiv rau lub sijhawm ntev (3 mus rau 10 teev lossis ntau dua).

Dab tsi ua rau qib oxygen hauv cov ntshav txo qis?

Cov ntshav cov pa oxygen tuaj yeem txo qis vim yog ib qho teeb meem hauv qab no:

Cov pa oxygen nyob rau hauv cov huab cua yog tsawg: nyob rau hauv high-altitude cheeb tsam xws li roob roob, cov pa oxygen nyob rau hauv cov huab cua yog tsawg heev.

Tib neeg lub cev muaj peev xwm nqus pa oxygen raug txo: Qhov no tuaj yeem tshwm sim los ntawm cov kab mob ntsws hauv qab no: mob hawb pob, emphysema (kev puas tsuaj ntawm cov hnab cua hauv lub ntsws), bronchitis, mob ntsws, pneumothorax (cua pa tawm ntawm lub ntsws thiab lub hauv siab phab ntsa), mob. Ua pa nyuaj siab Syndrome (ARDS), pulmonary edema (vim muaj mob ntsws o), Pulmonary fibrosis (scarring ntawm lub ntsws), kab mob ntsws interstitial (ntau tus kab mob ntsws uas feem ntau ua rau muaj pob caws pliav ntawm lub ntsws), kab mob kis, xws li as COVID-19

Lwm yam mob muaj xws li: anemia, pw tsaug zog apnea (pw tsaug zog thaum ua pa ib ntus), haus luam yeeb

Lub plawv muaj peev xwm muab cov pa oxygen rau lub ntsws txo qis: qhov tshwm sim feem ntau yog kab mob hauv lub plawv (mob plawv thaum yug los).

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Post lub sij hawm: Feb-25-2021