He stumbles a little in his rush to stand and extend his hand, following through on the handshake before too long. "O-Okay, thank you. You, uh, know how to contact me, either way," network or mundane phone alike, now.

With their meeting settled, Russell nods again and makes for the doorway, glancing at her to doublecheck they're good to go, and then follows her instructions to that seating area. No one likes their blood being drawn, but it's a fact of medical care, and he deals with it.

It'll be eleven days after this appointment - likely after the blood test results come in - that he gets some undeniable proof that the changes are due to echoes; even filming the transition at the boundary, though he's careful not to post the video anywhere.