Isihluzo sebhaktheriya yesekethe yokuphefumla sisixhobo sonyango esisetyenziselwa ukucoca iibhaktheriya, iintsholongwane, kunye nezinye izinto ezingcolisa umoya eziphefumlwa zizigulane ngexesha le-anesthesia okanye i-ventilation yomatshini.Isihluzo esilahlwayo esibekwe kwisekethe yokuphefumla phakathi kwesigulane kunye ne-ventilator yomatshini okanye umatshini we-anesthesia.Isihluzi senzelwe ukubambisa kunye nokususa ibhaktheriya kunye namanye amasuntswana anobungozi anokubangela usulelo lokuphefumla kunye nezinye iingxaki.Isihluzo sebhaktheriya yesiphaluka sokuphefumla siyinxalenye ebalulekileyo yokulawula usulelo kwizibhedlele kunye namaziko okhathalelo lwempilo, ukunceda ukunciphisa ukusasazeka kwezifo ezosulelayo kunye nokukhusela izigulane kunye nabasebenzi bezempilo ngokufanayo.