Would have to ask the wifie the Crofab dosing...............but depending on blood work, a dozen or two dozen vials isn't unheard of IIRC. It's a pricey accident.
I started initial therapy on a little girl not long ago - 6 vials at $10k/vial. Plus a chopper ride. $100,000 bill an hour after arrival at the hospital, by the time they lifted off the helipad. She was responding well, so I doubt any more Crofab was needed, but it isn't uncommon to go through 20 vials for a serious bite.