I-Pulse oximetry

I-Pulse oximetry yindlela engabonakaliyo yokubeka iliso kwi-oxygen saturation yomntu (SO2).Nangona ukufundwa kwayo kwe-peripheral oxygen saturation (SpO2) ayisoloko ifana nokufunda okunqweneleka ngakumbi kwe-arterial oxygen saturation (SaO2) ukusuka kuhlalutyo lwegesi yegazi ye-arterial, ezi zimbini zinxibelelene kakuhle ngokwaneleyo ukuba indlela ekhuselekileyo, elula, engabonakaliyo, engabizi kakhulu ye-pulse oximetry. Kubaluleke kakhulu ukulinganisa i-oxygen saturation kusetyenziso lwekliniki.

Kwimo yesicelo sayo esiqhelekileyo (esidlulisayo), isixhobo soluvo sibekwe kwindawo encinci yomzimba wesigulane, ngokuqhelekileyo umnwe okanye indlebe, okanye kwimeko yosana, kunyawo.Isixhobo sidlulisa amaza okukhanya amabini ngenxalenye yomzimba ukuya kwi-photodetector.Ilinganisa ukufunxwa okuguquguqukayo kwinqanaba ngalinye le-wavelengths, livumela ukuba limisele ukufunxa ngenxa ye-pulsing arterial blood kuphela, ngaphandle kwegazi le-venous, ulusu, ithambo, izihlunu, amafutha, kunye (kwiimeko ezininzi) ipolishi yezikhonkwane.[1]

I-Reflectance pulse oximetry yeyona ndlela ingaqhelekanga kwi-transmissive pulse oximetery.Le ndlela ayifuni icandelo elincinci lomzimba womntu kwaye ngoko ke ifaneleka kakuhle kwisicelo sendalo yonke njengeenyawo, ibunzi, kunye nesifuba, kodwa nayo inemida ethile.I-Vasodilation kunye nokudityaniswa kwegazi le-venous entloko ngenxa yokubuyela kwi-venous ephazamisekile entliziyweni kunokubangela indibaniselwano ye-arterial kunye ne-pulsations ye-venous kummandla webunzi kwaye ikhokelele kwiziphumo ezikhohlisayo ze-SpO2.Iimeko ezinjalo zenzeka ngelixa uphantsi kwe-anesthesia kunye ne-endotracheal intubation kunye ne-mechanical ventilation okanye kwizigulane ezikwi-Tendelenburg isikhundla.