Pulse oximetry

Pulse oximetry hanya ce da ba ta da ƙarfi don saka idanu akan jikewar iskar oxygen ta mutum (SO2).Ko da yake karatunsa na jikewar iskar oxygen (SpO2) ba koyaushe yake daidai da mafi kyawun karatun jikewar iskar oxygen ba (SaO2) daga nazarin iskar iskar gas na jini, su biyun suna da alaƙa da kyau sosai cewa amintaccen, dacewa, mara ɓarna, hanyar pulse oximetry mara tsada. yana da mahimmanci don auna yawan iskar oxygen a amfani da asibiti.

A cikin yanayin aikace-aikacen da aka fi sani da shi (mai watsawa), ana sanya na'urar firikwensin akan wani siriri na jikin majiyyaci, yawanci bakin yatsa ko kunun kunne, ko kuma a yanayin jariri, a kan ƙafa.Na'urar tana wucewa biyu na haske ta cikin sashin jiki zuwa na'urar gano hoto.Yana auna jujjuyawar ɗaukar nauyi a kowane tsayin raƙuman raƙuman ruwa, yana ba shi damar tantance abubuwan sha saboda bugun jini na jijiya kaɗai, ban da jinin jijiya, fata, kashi, tsoka, mai, da (a mafi yawan lokuta) goge ƙusa.[1]

Reflectance pulse oximetry shine mafi ƙarancin na kowa madadin bugun bugun bugun jini oximetery.Wannan hanya ba ta buƙatar wani siraren ɓangaren jikin mutum don haka ya dace da aikace-aikacen duniya kamar ƙafa, goshi, da ƙirji, amma kuma yana da wasu iyakoki.Vasodilation da haɗuwa da jinin jini a cikin kai saboda raguwar venous komawa zuwa zuciya zai iya haifar da haɗuwa da bugun jini da bugun jini a cikin yankin goshi kuma ya haifar da sakamakon SpO2.Irin waɗannan yanayi suna faruwa yayin da ake yin maganin sa barci tare da intubation na endotracheal da iskar injin inji ko a cikin marasa lafiya a cikin matsayi na Trendelenburg.