Wow, thank you for all your replies. Just a few clarifying details. No, I was not offended in the least. I specialize in psych/addictions, so my skin is tough as nails. I just thought it was a an interesting topic to discuss.
Yes, doctors have more education and expertise, which I fully recognize, but I don't want the hierarchy to get in the way of patient care. Also, she was questioning nurses being in charge at all as they should be at the bedside. That included nurse supervisors, charge nurses, case managers, and NPs.
No nurses were in charge of the care she was delivering. The nurse she was referring to just questioned one of her orders because it wasn't an appropriate dose, so the nurse was doing what any of us would do, even if we didn't have a charge position.
When we work as a team with mutual respect for skills and education, it can bring positive changes to patients and each other. That is that point I was trying to make with her, not that nurses should be in charge of everything.