dont know for definate what the time span is for getting the blood I did it the day before she delivered the pups, but if you have a dog on standby, then it dosnt take long to spin it down, the only thing I would say is make sure the vets have the equipment, I am sure most do, but judt in case, also I beleive the vest in the original post, are prepared to advice other vets on the proceedure, so your vet can phone them.

Mo