Pulse oximetersesetyenziselwa ukuvavanya imeko ye-oksijini yezigulane kwiindawo ezahlukeneyo zeklinikhi ziye zaba zizixhobo eziqhelekileyo zokubeka iliso.Ibonelela ngokuqhubekayo, ukujongwa okungahlaseliyo kwe-hemoglobin oxygen saturation kwi-arterial blood.I-pulse wave nganye iya kuhlaziya umphumo wayo.
I-Pulse oximeters ayiboneleli ngolwazi malunga nokugxininiswa kwe-hemoglobin, ukuphuma kwentliziyo, ukusebenza kakuhle kokuhanjiswa kwe-oksijini kwizicubu, ukusetyenziswa kwe-oksijini, i-oxygenation, okanye ukwanela kokungena komoya.Nangona kunjalo, banika ithuba lokuqaphela ngokukhawuleza ukutenxa kwisiseko se-oksijini yesigulana, njengomqondiso wesilumkiso kwangethuba koogqirha ukunceda ukuthintela iziphumo zokudambisa kunye nokufumanisa i-hypoxemia ngaphambi kokwenzeka kwe-osis.
Kuye kwacetyiswa ukuba ukwandisa ukusetyenziswa kwei-pulse oximetersngokubanzi iiwadi zingayenza iqheleke njengethemometha.Nangona kunjalo, kuxelwa ukuba abasebenzi banolwazi olulinganiselwe malunga nokusebenza kwezixhobo, kunye nolwazi oluncinci lomgaqo wokusebenza wezixhobo kunye nezinto ezinokuchaphazela ukufundwa.
Xa kuthelekiswa ne-hemoglobin encitshisiweyo, i-pulse oximeters inokulinganisa ukufunxwa kwamaza okukhanya athile kwi-hemoglobin ene-oxidized.Igazi elineoksijini ye-Arterial libomvu ngenxa yobunzima behemoglobin eneoksijini ekhoyo, nto leyo eyivumela ukuba ifunxe amaza okukhanya athile.I-oximeter probe ine-diodes ezimbini ezikhupha ukukhanya (i-LED) kwelinye icala le-probe, enye ebomvu kunye ne-infrared enye.I-probe ibekwe kwindawo efanelekileyo yomzimba, idla ngokuba yincam yomnwe okanye indlebe, kwaye i-LED idlulisela ubude bokukhanya kwi-photodetector kwelinye icala le-probe ngegazi le-arterial pulsating.I-oxyhemoglobin ifunxa ukukhanya kwe-infrared;ukunciphisa i-hemoglobin kubangela ukukhanya okubomvu.Igazi le-pulsatile arterial kwi-systole libangela ukuba i-hemoglobin ene-oksijini ihambe kwi-tissue, ifunxe ukukhanya okungaphezulu kwe-infrared, kunye nokuvumela ukukhanya okuncinci ukufikelela kwi-photodetector.Ukuhluthwa kwe-oxygen egazini kugqiba iqondo lokufunxa ukukhanya.Isiphumo sicutshungulwa kwi-digital display of oxygen saturation kwi-oximeter screen, emelwe yi-SpO2.
Kukho abavelisi abaninzi kunye neemodeli ze-pulse oximeters.Uninzi lubonelela ngomboniso wedijithali obonakalayo, ukubetha kwe-arterial evakalayo kunye nesantya sentliziyo, kunye nezinzwa ezahlukeneyo ukuze zilungele abantu ababudala, ubungakanani okanye ubunzima.Ukhetho luxhomekeke kwiisetingi eziyisebenzisayo.Bonke abasebenzi abasebenzisa i-pulse oximeters kufuneka baqonde umsebenzi wayo kunye nokusetyenziswa okuchanekileyo.
Uhlalutyo lwegesi ye-arterial luchaneke ngakumbi;nangona kunjalo, i-pulse oximetry ithathwa njengechanekile ngokwaneleyo kwiinjongo ezininzi zeklinikhi ngenxa yokulinganiselwa okuye kwaqatshelwa.
Imeko yesigulane-Ukubala umahluko phakathi kwee-capillaries kunye nee-capillaries ezingenanto, i-oximetry ilinganisa ukunyanzeliswa kokukhanya kwee-pulses ezininzi (ngokuqhelekileyo ezintlanu).Ukuze kubonwe ukuhamba kwegazi okutyhutyhayo, i-perfusion eyaneleyo kufuneka yenziwe kwindawo egadiweyo.Ukuba i-pulse ye-peripheral yesigulane ibuthathaka okanye ayikho, i-i-pulse oximeterukufunda kuya kuba kungachanekanga.Izigulana ezisengozini enkulu ye-hypoperfusion zezo zine-hypotension, i-hypovolemia, kunye ne-hypothermia, kunye ne-cardiac arrest.Abantu abanomkhuhlane kodwa bengenayo i-hypothermia banokuba ne-vasoconstriction kwiminwe kunye neenzwane zabo kwaye banokuphazamisa ukuhamba kwegazi.
Ukuba i-probe igxininiswe kakhulu, i-pulsations engekho-arterial ingabonwa, ibangele ukubethelwa kwe-venous emnweni.I-venous pulsation ikwabangelwa kukungaphumeleli kwentliziyo kwicala lasekunene, i-tricuspid regurgitation, kunye ne-tourniquet ye-blood pressure cuff ngaphezulu kweprobe.
I-arrhythmia yentliziyo inokubangela iziphumo zomlinganiselo ongachanekanga, ngakumbi ukuba kukho i-apex / i-bone deficit.
Idayi ze-intravenous ezisetyenziswa kuxilongo kunye novavanyo lwe-hemodynamic zinokubangela uqikelelo olungachanekanga lokugcwala kweoksijini, ngokuqhelekileyo kuphantsi.Imiphumo ye-pigmentation yesikhumba, i-jaundice, okanye amanqanaba aphezulu e-bilirubin kufuneka aqwalaselwe.
Ukusetyenziswa ngokuchanekileyo komlinganiselo we-pulse oximetry akubandakanyi ukufunda umboniso wedijithali kuphela, kodwa nangaphezulu, kuba akuzona zonke izigulane ezine-SpO2 ezifanayo ezinomxholo ofanayo we-oxygen egazini.I-saturation ye-97% ithetha ukuba i-97% ye-hemoglobin epheleleyo emzimbeni igcwele iimolekyuli ze-oksijini.Ke ngoko, ukugcwala kweoksijini kufuneka kucaciswe kumxholo wenqanaba le-hemoglobin epheleleyo yesigulane.Enye into echaphazela ukufundwa kwe-oximeter yindlela i-hemoglobin ebopha ngayo i-oksijini, enokuthi ihluke ngeenguqu kwiimeko ezahlukeneyo zomzimba.
Ixesha lokuposa: Jan-23-2021