Marian waits until he seems a little calmer.
He's not calm, though. He's breathing well above the ventilator set rate, his heart rate is still up around 115, and his muscles are visibly tense. Which she has a great view of because he was, in fact, naked under the Bair Hugger blanket which she's now folded over so it's just covering his legs. His forehead and hair are damp with sweat.
"Uh, one second. Are you still too hot?" She waits until he nods. "All right. I'm going to turn this blanket off and put it away properly and I'll get you a gown, okay?"
She doesn't need to leave the room; there's a gown on the counter by the sink, along with a neat pile of small hand towels. She folds up the Bair Hugger disposable blanket and piles it on top of the machine - he might want it again later - and then covers him up. The ICU gowns are designed with snaps along the shoulders, and a little vent behind the pointless little chest pocket to accommodate the heart monitor leads, so she can get it on him without undoing anything.
...Which is when she realizes that she's been puttering around the room while leaving the bedrail down and his left hand totally unrestrained. Dumb of her. A...good sign, though, that he's not actively trying to run away this second?