Video: Lub peev xwm tseem ceeb li cas?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Muaj peev xwm tseem ceeb (VC) yog qhov siab tshaj plaws ntawm huab cua uas tus neeg tuaj yeem tawm ntawm lub ntsws tom qab nqus tau ntau tshaj. Nws yog sib npaug rau cov lej ntawm inspiratory reserve volume, tidal volume, thiab expiratory reserve volume. A li qub neeg laus muaj ib muaj peev xwm tseem ceeb nruab nrab ntawm 3 thiab 5 litres.
Tsis tas li ntawd nug, dab tsi yog qhov muaj peev xwm tseem ceeb hauv mL kg?
Muaj peev xwm tseem ceeb (VC), qhov ntim ntawm huab cua ua pa tom qab muaj kev tshoov siab, feem ntau yog 60 txog 70 ml ua / kg thiab hauv li qub tib neeg tau txiav txim siab feem ntau los ntawm qhov thorax thiab lub ntsws loj. Txo VC rau 30 ml ua / kg yog cuam tshuam nrog hnoos tsis zoo, tsub zuj zus ntawm oropharyngeal tso zis, atelectasis, thiab hypoxemia.
Qhov thib ob, dab tsi yog qhov nyeem ib txwm ntawm tus ntsuas cua? Kev txhais lus ntawm spirometry Cov txiaj ntsig xav tau kev sib piv ntawm tus neeg ntsuas tus nqi thiab tus nqi siv. Yog tias FVC thiab FEV1 nyob hauv 80% ntawm tus nqi siv, cov txiaj ntsig tau txiav txim siab li qub . Cov li qub Tus nqi rau FEV1/FVC piv yog 70% (thiab 65% ntawm cov neeg laus dua 65 xyoos).
Hauv qhov no, dab tsi yog thaj tsam ib txwm rau lub peev xwm tseem ceeb?
Nws yog qhov suav ntawm tidal ntim, inspiratory cia ntim. thiab expiratory reserve ntim. Muaj peev xwm tseem ceeb ntawm li qub cov laus thaj tsam ntawm 3 mus rau 5 litres. Ib tug xov tooj ntawm lub cev yam xws li hnub nyoog, poj niam txiv neej, qhov siab thiab haiv neeg cuam tshuam lub ntsws tagnrho.
Dab tsi yog qhov yuam kev tseem ceeb ntawm lub peev xwm?
Forced tseem ceeb muaj peev xwm yuav raug tshaj tawm raws li ob tus lej hauv litres rau tus nqi tsis muaj tseeb thiab ntawm kab duab kab los qhia txog kev hloov pauv ntawm koj txoj kev nqus pa. Cov normal FVC ntau rau ib tus neeg laus yog nruab nrab ntawm 3.0 litres thiab 5.0 litres.
Pom zoo:
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Dab tsi yog thaj tsam ib txwm rau lub peev xwm tseem ceeb?
Nws yog lub sum ntawm tidal ntim, inspiratory cia ntim. thiab expiratory reserve ntim. Lub peev xwm tseem ceeb ntawm cov neeg laus ib txwm muaj ntawm 3 txog 5 litres. Ib tug xov tooj ntawm physiological yam xws li hnub nyoog, poj niam txiv neej, qhov siab thiab haiv neeg cuam tshuam lub ntsws ntim
Lub peev xwm tseem ceeb hauv mL kg yog dab tsi?
Lub peev xwm tseem ceeb (VC), qhov ntim ntawm cov pa tawm tom qab qhov kev tshoov siab, feem ntau yog 60 txog 70 ml/kg thiab hauv tib neeg ib txwm yog txiav txim siab feem ntau los ntawm qhov thorax thiab lub ntsws. Kev txo qis ntawm VC mus rau 30 mL / kg yog txuam nrog hnoos tsis muaj zog, tsub zuj zuj ntawm oropharyngeal secretions, atelectasis, thiab hypoxemia