[He waits for her to finish, supposing perhaps she's going to bring up some foreign term. After all, they're in a completely alien world peopled by little bipedal deerfolk. It wouldn't be surprising if there were some words that didn't translate, or didn't have a human equivalent.

Instead, the word she voices is oxygen, and she seems a little unsure of it. Haise ponders that briefly, as rock-peppered sand gives way to rocky stretches of shoreline]

If they're like humans in that way, I'd imagine blood and oxygen would both be important.

[Though now that she's involved air in the equation...]

Are you concerned with cardiac shock in particular?