Oh, I dunno. Sure, moving a critically injured patient without an urgent reason would have been completely contrary to her training. But as a civilian, she probably had no comprehension of just how much danger Vito was in at that moment, as well as herself. While she no doubt knew Vito's identity as a mafioso, she couldn't have known what that meant in practical terms, as it applied to her patient and herself. She probably accepted McCluskey's orders at face value, without even a second thought.

Something about Michael's presence, and the urgency and intensity in his manner as he told her of what was about to go down, grabbed her immediate attention. Michael gave her that urgent reason to act, and act fast.

~ Q