Don't let these low panel readings bother you. I've seen this before in Vulcans. It's their way of concentrating all their strength, blood and antibodies onto the injured organs - a form of self-induced hypnosis.
You mean he's conscious?
Well, in a sense. He knows we're here and what we're saying, but he can't afford to take his mind from the tissue he's fighting to heal. I suppose he even knows you were holding his hand.
A good nurse always treats her patients that way. It proves ...