Final answer:
Offer assistance if needed when your RN colleague is performing a complex and novel dressing for the first time.
Step-by-step explanation:
When your RN colleague is performing a complex and novel dressing for the first time, the most appropriate communication with her would be to offer assistance if needed. This shows support and collaboration, allowing her to feel comfortable seeking help if necessary.
Complimenting her on her skills would be a nice gesture, but it may not address her need for guidance during a new procedure. Ignoring the situation and letting her work independently could be risky, as she may make mistakes or feel overwhelmed.
Criticizing her for trying something new would not be fair or helpful, as she is taking the initiative to broaden her skills.