Half a liter sounds about right...from blood pressure checks afterwards I figured I'd lost around two pints. Second (pressure) dressing didn't really get that soaked, but first one was dripping.
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Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein