i was able to survive quite nicely, and i'm a Lt6, in the briar patch with my Constitution. it all depends on how you handle her, and what weapons/defences you have. also, never go 1on1 with a Negh'Var
Why can't I do that? I have yet to be beaten 1v1 by any AI ship at the Lt lvl. I've even survived 3 at once, and I'm only Lt 7 so far, since I've been too lazy to lvl my fed char.