I am sorry about your dog. My dog suffers from displaced hips and I know how difficult it is to watch them suffer.
Before you call your W be sure you have utilized every resource you can to help your dog. I keep ALL my dog's medical records (vet receipts which itemize all exams along with notes for after care). Perhaps your W does the same? I am not suggesting you rifle around her things but maybe she has a "vet" folder you can refer to?
If not maybe you can call the weekend clinic and ask if they have any suggestions. Just let them know the primary caretaker of the dog is out of town and unreachable and you are calling to see if there is any temporary solutions they can offer until you can contact your vet on Monday.
Honestly, I adore my dog and if my H knew something I didn't about how to help her and I had used all avenues to take care of it on my own and had no answer I probably would contact him.
