Inhalation Anesthesia is used during maintenance to keep the patient in a condition of controlled drowsiness. The major goal of giving inhalational drugs during maintenance is to relieve pain and relax patients by preventing muscular movements in response to surgery or endoscopic procedures. Inhalational anesthetics relieve pain in patients until they are fully awake from the effects of anesthesia. An inhalational anaesthetic is a chemical compound that has global anaesthetic properties and can be delivered via inhalation
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