[Bungleau]

Is this the only vet in town? If not, try some others. Or call to another town that's hopefully not too far away. I think most vets would be willing to give you a quick answer to give you an idea of what to do. They probably won't do a full diagnosis and prescription, but they should be able to give you an idea if it's something that you should consider driving to another town for, or you could hold off until Friday when the regular vet comes back.

You have my sympathies, amigo. Good luck.