Amasekhethi okuphefumula kwe-anesthesia ayingxenye ebalulekile yesistimu yokulethwa kwe-anesthesia.Asetshenziselwa ukuletha ingxube yamagesi, okuhlanganisa umoya-mpilo kanye nama-anesthetic agents, esigulini ngesikhathi sokuhlinzwa noma ezinye izinqubo zezokwelapha.Lezi zifunda ziqinisekisa ukungena komoya wesiguli futhi zinikeza indlela yokuqapha nokulawula isimo sazo sokuphefumula.Kunezinhlobo eziningana zamasekhethi okuphefumula kwe-anesthesia, okuhlanganisa: Ama-circuits okuphefumula (Ama-circuits avaliwe): Kulezi zifunda, amagesi akhishwa umoya aphefumula kancane isiguli.Aqukethe i-CO2 absorbent canister, esusa i-carbon dioxide emagesini akhishwe umoya, kanye nesikhwama se-reservoir esiqoqa futhi sigcine okwesikhashana amagesi akhishwe ngaphambi kokuba abuyiselwe esigulini.Amasekhethi aphefumulayo asebenza kahle kakhulu ekugcineni ukushisa nomswakama kodwa adinga ukuqapha nokugcinwa njalo ukuze kuqinisekiswe ukusebenza kahle.Amasekhethi angaphefumuli (Amasekhethi avuliwe): Lezi zifunda azivumeli isiguli ukuthi siphefumule kabusha amagesi azo akhishwe umoya.Amagesi akhishwa umoya axoshwa endaweni ezungezile, avimbele ukunqwabelana kwe-carbon dioxide.Amasekhethi angaphefumuli kabusha ngokuvamile ahlanganisa imitha yokugeleza kwegesi entsha, ishubhu lokuphefumula, i-valve engaqondile, kanye nemaski yokubulala izinzwa noma ishubhu le-endotracheal.Amagesi amasha alethwa esigulini ngokuhlushwa kwe-oksijeni ephezulu, futhi amagesi aphefumulelwe axoshwa endaweni ezungezile.Izinhlelo zokuphefumula ze-Mapleson: Izinhlelo ze-Mapleson zihlukaniswa ngezinhlobo ezahlukene, kuhlanganise nezinhlelo ze-Mapleson A, B, C, D, E, ne-F.Lawa masistimu ayahlukahluka ekucushweni kwawo futhi aklanyelwe ukuthuthukisa ukushintshaniswa kwegesi futhi anciphise ukuphefumula kabusha kwe-carbon dioxide.Izinhlelo zokuphefumula eziyindilinga: Amasistimu wombuthano, aziwa nangokuthi amasistimu wokumunca isiyingi, ayizinhlelo zokuphefumula kabusha ezivame ukusetshenziswa emisebenzini yesimanje yokubulala izinzwa.Zifaka ithini elimunca i-CO2, ishubhu lokuphefumula, i-valve yendawo yonke, kanye nesikhwama sokuphefumula.Amasistimu wombuthano avumela ukulethwa kwamagesi amasha okulawulwayo futhi okuphumelelayo esigulini, kuyilapho futhi kunciphisa ukuphefumula kabusha kwe-carbon dioxide.Ukukhethwa kwesifunda esifanele sokuphefumula kwe-anesthesia kuncike ezintweni ezihlukahlukene, kuhlanganise neminyaka yesiguli, isisindo, isimo sezokwelapha, kanye uhlobo lwenqubo yokuhlinzwa.Abahlinzeki be-Anesthesia bacubungula ngokucophelela lezi zici ukuze baqinisekise ukungena kahle komoya kanye nokushintshaniswa kwegesi ngesikhathi sokuphathwa kwe-anesthesia.