Georgiansilver wrote: "And I again say to the contrary... she sees it as a Christian duty to offer to pray for anyone who she feels needs prayer"

There lies the rub. It might be her Christian duty, but it's not her nurse's duty. She was there in the capacity of being a nurse, not a well-meaning Christian. She's not employed to do her Christian duty, simple as that.

If she needs some outlet where she needs to express her Christianity doing good deeds, I think she's best either changing jobs or doing some religious-based charity work where combining her personal beliefs and the remit of her job isn't an issue.