This is a way too general question considering there are 100's of anaestics. Also, different types. Some more specific info would help.
oxygen
nitrous oxide
Nitrous Oxide
Yes, typically desflurane, isoflurane, or sevoflurane are used.
It's a mixture of nitrogen and oxygen gasses - it's used as an anaesthetic in hospitals.
nitrogen
=nitrogern==(yeah night-ro-jan)=
Mainly pure oxygen is used, but this is often used in conjunction with nitrous, which has some pain- relieving properties and lowers the amount of actual anasthetic used. The drug that keeps the patient under anasthetic is vaporized into the o2/n2 mixture and therefore is breathed in by the patient.
Nitrous oxide gas is a colorless and odorless gas commonly known as laughing gas. It is used in medicine and dentistry as an anesthetic and analgesic. Additionally, nitrous oxide is sometimes used recreationally for its euphoric effects.
The cast of Anaesthetics - 2004 includes: Bennu Gerede as The Woman
they used nothing they just done the operation while you were awake
Nitrous oxide