Ukugcwala kweoksijini yegazi (SpO2)

SPO2zinokwahlulwa zibe zezi nxalenye zilandelayo: “S” uthetha ukuhluza, “P” uthetha ukubetha kwentliziyo, yaye “O2” kuthetha ioksijini.Esi sifinyezo silinganisa ubungakanani beoksijini encanyathiselwe kwiiseli ze-hemoglobin kwinkqubo yokujikeleza kwegazi.Ngamafutshane, eli xabiso libhekisa kumthamo weoksijini othwalwa ziiseli ezibomvu zegazi.Lo mlinganiselo ubonisa ukusebenza kakuhle kokuphefumla kwesigulane kunye nokusebenza kakuhle kokuhamba kwegazi kuwo wonke umzimba.I-oxygen saturation isetyenziswe njengepesenti ukubonisa umphumo walo mlinganiso.Umndilili wokufunda kumntu omdala osempilweni oqhelekileyo ngama-96%.

I-blood saturation ye-oksijeni ilinganiswa kusetyenziswa i-pulse oximeter, equka i-monitor ye-computer kunye ne-finger cuffs.Iibhedi zeminwe zinokubotshwa kwiminwe, iinzwane, iimpumlo okanye iindlebe zesigulana.Imonitha ke ibonise ufundo olubonisa ubungakanani beoksijini egazini lomguli.Oku kwenziwa kusetyenziswa amaza anokutolika ngokubonakalayo kunye nemiqondiso evakalayo, ehambelana nokubetha kwesigulane.Njengoko i-oxygen concentration kwigazi ihla, amandla omqondiso ayancipha.Imonitha iphinda ibonise izinga lentliziyo kwaye ine-alamu, xa i-pulse ikhawuleza kakhulu / icotha kwaye i-saturation iphezulu kakhulu / iphantsi, i-alarm signal ikhutshwa.

Iisixhobo sokugcwalisa i-oxygen egaziniilinganisa igazi eline-oksijini kunye negazi le-hypoxic.Iifrikhwensi ezimbini ezahlukeneyo zisetyenziselwa ukulinganisa ezi ntlobo zimbini zahlukeneyo zegazi: iifrikhwensi ezibomvu kunye ne-infrared.Le ndlela ibizwa ngokuba yi-spectrophotometry.Umlinganiselo obomvu usetyenziselwa ukulinganisa i-hemoglobin ephelelweyo, kwaye i-infrared frequency isetyenziselwa ukulinganisa igazi eline-oxygen.Ukuba ibonisa ukufunxa okukhulu kwibhendi ye-infrared, oku kubonisa ukugcwala okuphezulu.Ngokwahlukileyo, ukuba ukufunxa okuphezulu kuboniswe kwibhendi ebomvu, oku kubonisa ukugcwala okuphantsi.

Ukukhanya kudluliselwa ngomnwe, kwaye imitha yokudluliselwa ijongwa ngummkeli.Olunye lo kukhanya lufunxwa zizicubu kunye negazi, kwaye xa imithambo igcwele igazi, ukufunxa kuyanda.Ngokufanayo, xa i-arteries ingenanto, izinga lokufunxa liyancipha.Ngenxa yokuba kwesi sicelo, okukuphela kokutshintsha kukuhamba kwe-pulsating, indawo engatshintshiyo (okt isikhumba kunye nezicubu) inokuthatyathwa ekubaleni.Ngoko ke, usebenzisa i-wavelengths ezimbini zokukhanya eziqokelelwe kumlinganiselo, i-pulse oximeter ibala i-saturation ye-hemoglobin ene-oxygen.

I-97% ye-saturation = i-97% yoxinzelelo lwe-oxygen inxalenye (eqhelekileyo)

I-90% ye-saturation = i-60% yoxinzelelo lwe-oksijini inxalenye (iyingozi)

I-80% ye-saturation = i-45% ye-oxygen yegazi inxalenye yoxinzelelo (i-hypoxia enzima)