Spinal anesthesia refers to the technique whereby local anesthetics are administered in the cerebro spinal fluid in the sub arachnoid space to achieve regional anaesthesia in cases where general anaesthesia is not required or recommended it results in anesthesia in the umbilical region targeted according to the nerve supply. Step by step regional anesthesia 9781848290044 books amazonca skip to main contentca hello sign in account lists account returns orders try prime cart books go search hello select your . Steps in conducting general anesthesia first step of general anesthesia preoperative evaluation anesthesia plan and premedication safe conduction of anesthesia depends on preoperative evaluation anesthesia plan monitoring responding to a homeostatic change throughout anesthesia and operation. Step by step procedure of spinal anaesthesia midline approach sitting positionunder local anaesthesia