Thank you everyone, Nebo definitely appreciates all the prayers for him. The vet wasn't there when I picked him up, but the receptionist said that he was happy with the results of the surgery. I don't know the results of the blood test or what the tumor is yet though. *worried*

They gave me a plastic thing to put over his leg when he goes out. It seems to work ok...the snow is deep enough in places to reach the stitches but they haven't really gotten wet with that thing on. No e-collar, but he has been good...he's licked them a few times but he stops if I tell him too. I've been bringing him to work with me just in case. They did give me pain meds to give him for a few days. He seemed ok today, just a bit tired still.