The only thing left for me to say is that I have never seen a pup with liver and/or kidney issues related to heartworm preventatives. I have never seen any research data that indicates the necessity of such testing when vets prescribe these preventatives. And, lastly, it worries me greatly that there is so much fear mongering about heartworm preventatives. I believe there is more of a risk of a dog contracting heartworms when not protected than there is of a liver issue from being given a preventative.
As to testing ... my vet does lab testing on all of my pups yearly. I believe that to be a good standard of care. I go to my doctor for my yearly and take my pups for the same. |