Alkalosis vs Acidosis
Tib neeg cov ntshav pH yog khaws cia li ntawm 7.4. Qhov no yog pH qhov twg feem ntau ntawm cov enzymes qhia lawv cov haujlwm zoo tshaj plaws. Tsis tas li ntawd, qhov no yog pH qhov twg feem ntau ntawm lwm cov molecules lom neeg qhia lawv cov haujlwm siab tshaj plaws. Yog li nws yog ib qho tseem ceeb kom tswj cov ntshav pH ntawm qib no. Peb lub cev muaj cov txheej txheem tshwj xeeb los tswj pH ntawm nws qib (nruab nrab ntawm 7.35 thiab 7.45). Alkalosis thiab acidosis yog ob qho kev txawv txav uas cov ntshav pH txawv ntawm tus nqi ib txwm muaj. Thaum pH siab dua 7.45, cov ntshav yuav muaj alkaline ntau dua. Hauv qhov sib piv thaum pH qis dua 7.35, cov ntshav yuav muaj kua qaub ntau dua. Yog tias cov txiaj ntsig no txawv ntawm qhov ib txwm muaj (piv txwv li pH 4 lossis pH 10), nws yog qhov mob hnyav heev. Muaj ntau lub tshuab hauv peb lub cev los tswj cov qib pH. Lub raum, lub ntsws yog cov kabmob tseem ceeb uas koom nrog cov txheej txheem no. Txhua yam kab mob uas cuam tshuam rau cov txheej txheem ntawm kev ua pa lossis kev tso tawm tuaj yeem ua rau alkalosis thiab acidosis.
Alkalosis
Alkalosis yog qhov mob ntawm cov ntshav pH ntau dua 7.45 vim muaj cov alkali ntau dhau hauv cov ntshav. Qhov zoo tshaj plaws, qhov no yog xa mus rau cov ntshav hauv cov hlab ntsha. Alkalosis tuaj yeem tshwm sim vim ntau yam. Ib qho laj thawj yog vim hyperventilation. Qhov no tuaj yeem ua rau poob ntawm cov pa roj carbon dioxide, uas yuav tsum tau tswj kom zoo acidity. Metabolic alkalosis tshwm sim vim kev cuam tshuam ntawm cov ntsiab lus electrolyte ntawm lub cev. Qhov no tuaj yeem yog vim ntuav ntuav, lub cev qhuav dej heev, thiab lwm yam. Tsis tas li ntawd, thaum noj cov tshuaj sib xyaw ua ke ntau, alkalosis tuaj yeem tshwm sim.
Acidosis
Acidosis yog hais txog cov mob uas muaj pH qis dua 7.35 hauv cov ntshav. Raws li cov khoom lag luam ntawm cov metabolism hauv cov hlwb, ntau cov acidic compounds raug tsim. Cov pa roj carbon dioxide yog qhov tsim tawm ntau tshaj plaws hauv cov hlwb los ntawm kev ua pa ntawm tes. Cov pa roj carbon dioxide yog cov kua qaub. Nws dissolves hauv dej thiab tsim carbonic acid. Lwm yam tshaj li carbon dioxide, lactic acid, ketoacids, thiab lwm yam organic acids kuj raug tsim. Tag nrho cov no yuav tsum tau tswj hwm thiab tshem tawm ntawm lub cev txhawm rau tiv thaiv pH poob qis. Piv txwv li, peb muaj lub buffering system nyob rau hauv peb lub cev rau qhov no. Cov no tuaj yeem tiv taus qhov sib ntxiv ntawm ntau tshaj alkali thiab acid. Hauv lwm lo lus, lawv tsis tso cai hloov pH thaum ntxiv cov kua qaub lossis alkali. Bicarbonates, phosphates, plasma proteins ua haujlwm zoo hauv peb lub cev. Tsis tas li ntawd, lub raum thiab lub ntsws yog cov kabmob tseem ceeb uas koom nrog hauv kev tswj cov ntshav pH. Cov pa roj carbon dioxide raug tshem tawm ntawm lub cev los ntawm lub ntsws los ntawm exhaling. Inhaling thiab exhaling yog txheej txheem tseem ceeb hauv kev tswj cov ntshav pH. Lub raum tsim cov zis thiab, los ntawm cov txheej txheem no, lawv tso tawm feem ntau ntawm cov tsis xav tau acidic Cheebtsam ntawm peb lub cev. Tshwj xeeb tshaj yog qib bicarbonate yog tswj los ntawm ob lub raum.
Yog li ntawd, raws li tau hais los saum toj no, acidosis tuaj yeem tshwm sim vim kev tsim cov tshuaj acidic ntau ntxiv los ntawm cov metabolism, kev noj zaub mov ntau ntxiv uas ua rau cov kua qaub qis, cov kua qaub qis. Ntxiv mus, yog tias ntau lub hauv paus tau tawm ntawm lub cev, cov kua qaub hauv lub cev tuaj yeem sib piv tau ntau ntxiv.
Qhov txawv ntawm Alkalosis thiab Acidosis yog dab tsi?
• Acidosis yog hais txog tus mob uas muaj pH qis dua 7.35 hauv cov ntshav. Alkalosis yog mob ntshav pH ntau dua 7.45.
• Alkalosis yog vim muaj cov tshuaj alkaline siab hauv cov ntshav thiab acidosis yog vim muaj cov kua qaub ntau hauv cov ntshav.
