![High SvO2 txhais li cas? High SvO2 txhais li cas?](https://i.answers-medical.com/preview/medical-health/13819828-what-does-high-svo2-mean-j.webp)
Video: High SvO2 txhais li cas?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Yog li, SWV 2 tuaj yeem qhia tau tias tus neeg lub plawv dhia tawm los siab txaus kom tau raws li lawv xav tau. Ib qho nce hauv SWV 2 qhia tau hais tias txo qis hauv kev nqus cov pa, thiab feem ntau cuam tshuam tias lub plawv tawm los ua tau raws li cov ntaub so ntswg xav tau. Rov qab los ntawm SWV 2 rau ib txwm qhia txog tus neeg mob txhim kho.
Hauv qhov no, dab tsi ua rau nce SvO2?
nce hauv kev siv oxygen tuaj yeem ua rau a SWV 2 <60%. Thaum qhov sib npaug ntawm cov pa oxygen thiab kev xav tau raug hem, lub cev npaj nws cov txheej txheem them nyiaj kom ntseeg tau tias muaj oxygen txaus. Ob qhov tseem ceeb tshaj plaws yog nce hauv cardiac output thiab nce hauv cov pa tawm.
Ib qho ntxiv, SvO2 ib txwm yog dab tsi? Cov normal SWV 2 yog 65-75%, uas qhia txog kev nqus cov pa oxygen mus rau 25-35%. Li qub PvO2 yog 35-45mmHg.
Ua qhov no hauv kev txiav txim siab, puas yog SvO2 siab lossis qis hauv sepsis?
Tshaj tawm cov qib ib txwm rau SWV 2 sib txawv ntawm 60-80%; ib txwm SWV 2 ntawm 70% yog nquag hais. ScvO2 thiab SWV 2 feem ntau qis dua qub hauv cov neeg mob hypovolemia (suav nrog GI hemorrhage) thiab cardiogenic poob siab, lossis qis -flows xeev; lawv feem ntau siab hauv cov neeg uas muaj kev poob siab faib tawm (piv txwv li, septic poob siab ).
Dab tsi yog sv02 sawv rau?
Taw qhia. Thaum cov pa oxygen hais txog qhov feem pua ntawm hemoglobin khi rau cov pa oxygen hauv cov qe ntshav liab, sib xyaw ua kom cov pa oxygen txaus ( SWV 2 ) hais txog cov pa oxygen hauv cov ntshav uas rov qab mus rau lub plawv tom qab ntsib cov ntaub so ntswg xav tau.
Pom zoo:
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Yog li, SvO2 tuaj yeem qhia tau tias tus neeg lub plawv tawm los siab txaus kom tau raws li qhov lawv xav tau. Kev nce hauv SvO2 qhia txog kev txo qis cov pa oxygen, thiab feem ntau cuam tshuam tias lub plawv tawm los ua tau raws li cov nqaij xav tau oxygen. Kev xa rov qab ntawm SvO2 mus rau qhov qub qhia txog tus neeg mob txhim kho
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