1.

Idition :-a drug or gas to making the

Answer»

Desflurane, isoflurane and sevoflurane are the most widely used volatile anaesthetics today. They are often combined with nitrous oxide. Older, LESS popular, volatile anaesthetics, include halothane, enflurane, and methoxyflurane. Researchers are also actively exploring the use of xenon as an anaesthetic.There are four STAGES of general anesthesia, namely: analgesia - stage 1, delirium - stage 2, SURGICAL anesthesia - stage 3 and respiratory arrest - stage 4. As the patient is INCREASINGLY AFFECTED by the anesthetic his anesthesia is said to become 'deeper'.



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