Nurses in our unit administer Versed, Fentanyl, and Valium for these procedures and we've found that atleast 50% of these procedure patients are inadequately sedated, no matter the dosages used. These are patients that are diaphoretic, need restraint during the procedures and become tachycardic with hypertension. We simply can't get them to a good level of sedation for a safe procedure.
Please let me know what your units are doing. Do you experience the same? Are you using propofol instead (by anesthesiology)? Are you using a different combination of drugs that provides a safe procedure?