Reading ブラックジャックによろしく manga exercises (p14-and up)

Japanese Language Reading
146

17.

斎藤: 《おじいさん…あなた『は』本当『に』意識『が』ないんですか…？》

本当に: really, truly;
When a -na adjective is followed by に, is に always an adverbial?;
意識 is the subject as indicated by が.
なんですか: it is assuredly that;

Edit: fixed typo.