Bloodwork performed was normal. Vomiting was induced and the dogs symptoms began to improve within fifteen minutes. She was given activated charcoal to absorb any further toxin in her GI tract, and medication to settle her stomach.
It is suspected that the cookie contained mold that caused the symptoms. Fortunately her owner found her quickly and the source of the mold could be removed promptly. By the next day she was back to her normal, happy self!