You might have to force the nutrical into her. This poor little girl has more issues than I realized when I first read this. Stress did not cause her Gardia as she came to you this way. There is a ton of information on the internet about Gardia but it might be a long term battle with it. I am so glad you took her to the vet right away due to her size...You do have to get some food in her so the nutrical will help but if she is not crazy about the chicken then you might try the Little Cesars (I hate it) but it is more important she eats or baby Jr food.
Dog Diarreha, Vomiting and Weight Loss | Giardia Protozoa in your Dog | GREATDANELADY.COM