Pulse oximetry inzira isingasviki yekutarisa kuzara kweokisijeni yemunhu (SO2).Kunyangwe kuverenga kwayo kweperipheral oxygen saturation (SpO2) isiri nguva dzose yakafanana nekuverenga kunodiwa kwe arterial oxygen saturation (SaO2) kubva kune arterial blood gas kuongororwa, izvo zviviri zvakabatanidzwa zvakakwana zvekuti yakachengeteka, yakanakira, isingasviki, isingadhure pulse oximetry nzira. yakakosha pakuyera oxygen saturation mukushandiswa kwekiriniki.
Mune yakajairika (transmissive) application mode, sensor mudziyo unoiswa pachikamu chakatetepa chemuviri wemurwere, kazhinji pamunwe kana nzeve, kana mucheche, netsoka.Chigadzirwa chacho chinopfuudza mawavelength maviri echiedza kuburikidza nechikamu chemuviri kune photodetector.Inoyera kuchinja kunyura pane imwe neimwe yewavelengths, ichibvumira kuti ione kunyura kunokonzerwa nekuputika kweropa reropa rega, kunze kweropa retsinga, ganda, bhonzo, tsandanyama, mafuta, uye (kazhinji) kuchenesa kwezvipikiri.[1]
Reflectance pulse oximetry inzira isingawanikwe kune transmissive pulse oximetery.Iyi nzira haidi chikamu chakatetepa chemuviri wemunhu uye saka yakanyatsokodzera kushandiswa kwepasi rose setsoka, huma, uye chipfuva, asi inewo zvimwe zvinogumira.Vasodilation uye kuungana kweropa re venous mumusoro nekuda kwekukanganisa kudzoka kwe venous kumoyo kunogona kukonzera musanganiswa we arterial uye venous pulsations munharaunda yehuma uye zvinotungamira kune zvisirizvo zveSpO2 mhedzisiro.Mamiriro akadai anoitika paunenge uchivhiyiwa neaneshesia ine endotracheal intubation uye mechanical ventilation kana muvarwere vari panzvimbo yeTendelenburg.[2]
Nguva yekutumira: Mar-22-2019