SPO2za a iya karkasu zuwa cikin wadannan sassa: "S" na nufin jikewa, "P" na nufin bugun jini, da "O2" na nufin oxygen.Wannan taƙaitaccen bayanin yana auna adadin iskar oxygen da ke haɗe da ƙwayoyin haemoglobin a cikin tsarin kewaya jini.A takaice, wannan kimar tana nufin adadin iskar oxygen da jajayen ƙwayoyin jini ke ɗauka.Wannan ma'auni yana nuna ingancin numfashin majiyyaci da ingancin kwararar jini a cikin jiki.Ana amfani da jikewar iskar oxygen a matsayin kashi don nuna sakamakon wannan ma'aunin.Matsakaicin karatu ga babba mai lafiya na yau da kullun shine 96%.
Ana auna jikewar iskar oxygen ta jini ta amfani da oximeter na bugun jini, wanda ya haɗa da na'urar duba kwamfuta da ɗaurin yatsa.Za a iya manne gadajen yatsa akan yatsun mara lafiya, yatsu, hanci ko kunnuwa.Sa'an nan mai saka idanu yana nuna karatun da ke nuna adadin iskar oxygen a cikin jinin mara lafiya.Ana yin wannan ta amfani da igiyoyin ruwa da ake iya fassarawa da gani da sigina masu ji, waɗanda suka dace da bugun bugun mara lafiya.Yayin da iskar oxygen a cikin jini ya ragu, ƙarfin siginar yana raguwa.Hakanan mai saka idanu yana nuna bugun zuciya kuma yana da ƙararrawa, lokacin da bugun bugun jini yayi sauri/a hankali kuma jikewa yayi yawa/ƙasa, ana ba da siginar ƙararrawa.
Thejini oxygen jikewa na'urarauna jinin oxygenated da jinin hypoxic.Ana amfani da mitoci daban-daban guda biyu don auna waɗannan nau'ikan jini guda biyu: ja da mitar infrared.Ana kiran wannan hanyar spectrophotometry.Ana amfani da mitar ja don auna haemoglobin da ba ta da kyau, kuma ana amfani da mitar infrared don auna jinin oxygen.Idan ya nuna mafi girma sha a cikin infrared band, wannan yana nuna babban jikewa.Sabanin haka, idan an nuna matsakaicin sha a cikin rukunin ja, wannan yana nuna ƙarancin jikewa.
Ana watsa hasken ta cikin yatsa, kuma hasken da aka watsa ana lura da shi ta hanyar mai karɓa.Wasu daga cikin wannan haske suna ɗaukar kyallen takarda da jini, kuma idan arteries suka cika da jini, sha yana ƙaruwa.Hakazalika, lokacin da arteries ba su da komai, matakin sha ya ragu.Domin a cikin wannan aikace-aikacen, madaidaicin kawai shine ƙwanƙwasa ƙwanƙwasa, za'a iya cire tsayayyen ɓangaren (watau fata da nama) daga lissafin.Saboda haka, ta yin amfani da tsawon tsawon haske guda biyu da aka tattara a cikin ma'auni, oximeter na bugun jini yana ƙididdige jikewa na haemoglobin oxygenated.
97% jikewa = 97% oxygen partial matsa lamba (na al'ada)
90% jikewa = 60% oxygen partial pressure (mai haɗari)
80% jikewa = 45% oxygen partial pressure (m hypoxia)
Lokacin aikawa: Nov-21-2020