anesthesia
"Had never been hospitalized before and had to have a stent placed for a kidney stone.  Don't even remember the feeling of falling asleep.  Was on the OR table getting monitoring electrodes placed and then instantly in the recovery room and felt fine.    Transported to hospital room and was immediately able to drink a soda and eat  a sandwich.  No tired or sleepy feeling all.  Will request same for upcoming lithotripsy procedure."