Will Falconer, DVM Moderator
Hi DM,
I've never seen the need for ultrasound as I'm not treating the worms, I'm only treating the sick dog. It might make a difference if your approach, holistic or otherwise, is killing worms. I can't speak to that.
Over the years, I've treated probably close to 20 cases like this, and only remember one "failing," which only meant the test remained positive, the old dog had few to no symptoms, and finally died of old age, not heartworms.
I think you'll do far better for a dog who's given birth to a single pup and now has parasites to treat constitutionally. The inherited "taint" is showing through, and I know of nothing deeper than that approach to get the whole dog well. When you accomplish this, the worms will no longer have a home.
Best of luck with her.