Not sure about that . Have a look at these survey results from Scotland makespersonscottishMost people believe being born and growing up there , or having two parents who grew up there , makes you Scottish . <| sep |> Yeah but that ' s the finest damn toolbox I ' ve ever seen . <| sep |> I ' ve worked at 4 different hospitals in the United States and I ' ve not seen the routine use of versed . The typical colonoscopy lasts between 10 and 15 minutes here , which makes the use of propofol as a sole agent very sensible for us . As with many things in anesthesia , there are many different ways of accomplishing the same end result . It seems like other places practice differently . Factors for anesthetics typically include drug availability , drug cost , proceduralist preference , anesthetist preference , patient preference , and drug side effect profile , and sometimes tradition .