What nitrous sedation is
You breathe nitrous oxide through a small mask over your nose, mixed with oxygen. Within a couple of minutes you feel warm and a little floaty, but you are fully awake and breathing on your own the whole time.
You can still answer a question or lift a hand if you need something. Most people just lose track of the visit. The sounds and the poking that usually set your nerves off fade into the background.
For anyone searching for laughing gas or nitrous sedation in Leander, it is the lightest, most convenient option there is, and it clears in minutes so you can usually drive yourself home.