If a patient receives 1 mg of versed and 25 micrograms of fentanyl for cardiac cath would members call this moderate sedation?
The actual terms (conscious, moderate, deep sedation) have actual definitions that don't change based on which drug or how much you use.
The cocktail specified might be conscious sedation in a 22 year old and deep sedation in a 92 year old. You may be setting your policy up for failure by misusing the terms and setting hard dosage caps.