I. Kev qhia txog kev kho pa oxygen
Mob plawv thiab ua pa: Rau cov neeg mob uas muaj mob plawv lossis ua pa tawm los ntawm txhua qhov laj thawj, cov pa roj oxygen thaum rov ua dua. Thaum tsis yog - ua pa cov pa, cov khoom siv zoo li cov pa ua pa, ua pa, lossis tshuaj loog siv rau tracheal incygen.
Hypoxemia
Hypoxemia nrog hypercapnia: Tshwm sim los ntawm cov cua tsis txaus, nrog cov pa roj carbon dioxide khaws cia. Cov pa oxygen tuaj yeem kho hypoxemia tab sis yuav ua rau cov pa roj carbon dioxide tsis muaj tseeb.
Yooj Yim Hypoxemia Yooj Yim: Feem ntau yog vim diffusion tsis sib xws thiab qhov cua \/ ntshav txaus tsis txaus. Nce tawm cov pa oxygen tuaj yeem raug Hypoxemia los ntawm kev sib txawv, tab sis nws tsis tshua ua tau zoo rau kev ua pa \/ ntshav txaus tsis pom kev.
Cov ntaub so ntswg hypoxia: Nyob rau hauv tej yam xwm txheej xws li poob qis cov zis, mob myocardial infarction, thiab anemia, txawm hais tias pom tseeb hypoxemia yuav tsis muaj, cov nqaij hypoxia tuaj yeem tshwm sim. Saib xyuas cov ntshav sib xyaw
Ii. Lub hom phiaj ntawm kev kho pa oxygen
Kho hypoxemia: Nce alveolar oxygen ib nrab siab, muaj peev xwm ntau dua, thiab muaj peev xwm paponary capillen partly, tsa cov pa pao2.
Txo cov haujlwm ntawm kev ua pa: Restores qhov kev hloov pauv lub ntsws ib txwm muaj pa roj, tswj cov roj alveolar tsim nyog, txo tag nrho cov pa thiab cov pa oxygen.
Txo lub plawv thauj: Zoo txo txoj haujlwm ntawm lub siab thiab nws lo load.
III. Txoj kev ntawm kev kho pa oxygen
High - Ntws Cov Txheej Txheem System Oxygen
Lub ntsiab lus: Muab cov roj av ntim puv puv. Tus neeg mob nqus tau cov roj xwb los ntawm cov kab ke. Nws tuaj yeem muab cov oxyg drable ruaj khov (24% {1}}%). Lub qhov muag ventruri yog ib qho khoom siv uas nquag siv, siv Bernoulli cov ntsiab cai los tswj cov pa nqus pa thiab kho cov oxygen conventration.
Qhov Zoo: Tuaj yeem muab cov pa oxygen ntev thiab tswj qhov ntsuas kub thiab saib xyuas kev nqus pa roj, thiab saib xyuas cov pa oxygen. Nws yuav tsum tau ntsib tsawg kawg 4 zaug tus neeg mob lub sijhawm siv tau ib yam kom paub tseeb.
IV. Hyperbaric oxygen kho
Siv 100% oxygen ntawm Pressures> 101.35kpa (1atm) txhawm rau txhim kho cov ntaub so ntswg hypoxia thiab inhibit anaerobic bacteria kev kis mob thaum lub cev muaj mob. Ua kom nce cov pa oxygen hauv cov ntshav (piv txwv li, ntawm 303.975kpa lossis 3atm, Plasma yaj yuav ncav cuag 6.6mL). Cov qauv qhia muaj xws li hemorrhagic anemia, carbon monoxide lom, mobile lom, mob roj chodolism, roj Gangrene, thiab lwm yam.
V. Kev saib xyuas cov nyhuv ntawm kev kho pa oxygen
Teb cov lus teb cardiovascular system: Sole Sasements, ntshav siab, lub plawv dhia, atheroscler Kev txhim kho qhia tau qhia qhia txog cov kev siv cov pa oxygen zoo.
Kev ua pa lub cev teb: Dyspnea thiab ua tsis taus pa yuav tsum tau txhim kho, kev ua pa ua pa ua kom ruaj khov, ua haujlwm qeeb qeeb, thiab ua haujlwm ntawm kev ua pa.
Kev Ntsuas Ntshav: PAO2 yuav tsum nce ntxiv.
VI. Cov kev mob tshwm sim ntawm kev xa pa oxygen thiab oxygen toxicity
Cov pa roj carbon dioxide khaws: Nyob rau hauv hypoxemia, siab - concentration oxygen inhalation tuaj yeem tshem tawm cov pa hloov pauv thiab nce qib siab, muaj peev xwm ua rau lub pulmonary encephanathy. Tsawg - concentration inhalation inhalation yog pom zoo rau cov neeg mob uas muaj feem xyuam nrog PACO2 saib xyuas.
Absorpptive atelectasis: Kev siab siab - concentration oxygen inhalation tso tawm ntawm alveolar nitrogen. Nrog kev zawm hniav thaiv kev, alveolar cov pa tuaj yeem nqus tau sai, ua rau atelectasis.
Cov pa oxygen
Tsos mob: Cov tsos mob thaum ntxov muaj li cas tsis muaj pa ntxiv (tsis tuaj yeem ua tsis taus pa, kev mob luv luv, feem ntau tsis pub dhau 6 teev ntawm kev nqus pa 100% oxygen. LUNG muaj nuj nqi tej zaum yuav yog qhov pib, tom qab ntawd LUNG muaj peev xwm thiab kev ua raws li tsawg dua. ARDS, Hemoptysis, alveolar cell kev puas tsuaj, surfactant txo, thiab intersstitial fibrosis yuav tshwm sim dhau sijhawm.
Kev tiv thaiv: Oxygen ntawm 60% {- 70}% ntawm 101.35kpa (1atm) tuaj yeem siv tau nyab xeeb rau 24 teev; 40% {{{{{}}% tuaj yeem siv sijhawm ntev dua. Oxygen conctration> 40% rau 2 - 3}} hnub nce kev pheej hmoo ntawm kev lom zem. Xav tau cov opten oxygen xav tau, nrog rau cov kev kho mob benmodilators, thiab peepen kom muaj oxygen, thiab peepees}. 33kpa (60 - 70 mmHg).