I got a notice from the vet. I assume they will do the heart worm test, which will cost money, and then sell us the heartworm medicine at a mark-up. I know I can get the same medicine at a discount elsewhere. I don’t mind taking him in for the test, if it is necessary, but is it? He’s never missed a dose since we had him tested originally, so could he still get heart worms?

My dog has never missed a month of her medication and now my vet claims she has to be tested every year for heart worm.

Is that necessary?