I couldn't recommend this place highly enough.
Hurst Animal Clinic - Hurst, TX
Dr. Daryl is the most amazing vet. When he was in N. Dallas, I drove from Allen to see him. But the drive from Allen to Hurst is simply too far. But if a true emergency came up, I would absolutely be calling him for a second opinion.
If you go to see him, tell him Gracie Ruth and Yogi from his time at Preston Road Animal Hospital say Hi.