Hi, well "everyone" is a broad term. I work in an out patient surgery and GI clinic. We all have ACLS, it is required to work PACU.
In a GI only clinic, an RN giving moderate sedation, I'm not sure of the rules, depends on that states Board of Registered Nursing, to the Dr's scope of practice, his licensing, etc. Giving moderate sedation in my area of the country requires the nurse to have ACLS.