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ANAESTHESIA
What is anaesthesia?
General Anaesthesia - reversible unrousable unconsciousness, usually drug induced.
Local anaesthesia - useless vague term referring to the use of local anaesthetics somehow.
Topical anaesthesia - anaesthesia of skin or mucous membranes by topical appliation of local anaesthetics.
Infiltration anaesthesia - anaesthesia of tissues by direct injection of local anaesthetic where it is needed - ie for excision of skin lesions.
Regional anaesthesia (`conduction blocks' or `blocks') - anasthesia of a part of the body by injecting local anaesthetic into the nerves that go there. Simple blocks include finger blocks, ankle blocks, etc; more complex blocks include plexus blocks, and `major regionals' mean epidural or spinal anaesthesia.
Conscious Sedation - sedation and anxiolysis with consciousness retained.
Neurolept Analgesia - analgesia, disinterest and psychomotor retardation; often little anxiolysis.
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