I-oxygen saturation eqhelekileyo yi-97-100%, kwaye abantu abadala badla ngokuba namanqanaba aphantsi okucoca i-oxygen kunamancinci.Umzekelo, umntu oneminyaka engama-70 ubudala unokuba nenqanaba lokugcwala kweoksijini elimalunga nama-95%, elinqanaba elamkelekileyo.
Kubalulekile ukuba uqaphele ukuba inqanaba le-oxygen saturation lingahluka kakhulu kuxhomekeke kwimpilo yomntu.Ngoko ke, kubalulekile ukuqonda ukufundwa kwesiseko kunye ne-physiology ephantsi ehambelana neemeko ezithile ukuze uphendule amanqanaba okugcwalisa i-oxygen kunye notshintsho kula manqanaba.
Abantu abatyebe ngokugqithiseleyo okanye abathwaxwa zizifo zemiphunga nezentliziyo, i-emphysema, isifo semiphunga esinganyangekiyo, isifo sentliziyo abazalwa nabo, kunye ne-apnea yokulala badla ngokuba namanqanaba asezantsi okugcwala kweoksijini.Ukutshaya kuchaphazela ukuchaneka kwe-pulse oximetry, apho i-SpO2 iphantsi okanye iphezulu ngobuxoki, kuxhomekeke ekubeni kukho i-hypercapnia.Kwi-hypercapnia, kunzima kwi-pulse oximeter ukwahlula phakathi kwe-oksijini egazini kunye ne-carbon monoxide (ebangelwa ukutshaya).Xa uthetha, ukugcwala kweoksijini yegazi kunokuncipha kancinci.I-oxygen saturation yegazi yezigulane ze-anemia zinokuhlala ziqhelekileyo (umzekelo, i-97% okanye ngaphezulu).Nangona kunjalo, oku akuthethi ukuba kukho i-oksijini eyaneleyo, kuba i-hemoglobin kubantu abane-anemia ayanele ukuthwala i-oxygen eyaneleyo.Ukungonelanga kwe-oksijini ngexesha lemisebenzi kunokubonakala ngakumbi kwizigulane ezine-anemia.
Amanqanaba e-hypoxic saturation angalunganga anokunxulumana ne-hypothermia, ukuncipha kwe-peripheral blood perfusion, kunye ne-cold extrem.Kwezi meko, i-earlobe pulse oximeter okanye i-arterial blood gas iya kunika amanqanaba achanekileyo okuzalisa i-oxygen.Nangona kunjalo, iigesi zegazi ze-arterial zidla ngokusetyenziswa kuphela kukhathalelo olunzulu okanye kwiimeko ezingxamisekileyo.
Ngapha koko, uluhlu lwe-SpO2 uninzi lwabathengi abadla ngokulwamkela luyi-92-100%.Ezinye iingcali zincoma ukuba amanqanaba e-SpO2 ubuncinane angama-90% anokuthintela umonakalo wezicubu ze-hypoxic kwaye aqinisekise ukhuseleko lomsebenzisi.
Ixesha lokuposa: Mar-01-2021