Quote:
Originally Posted by Rhetts_mama  But giving the preventative without doing the test is dangerous. A heart worm can come loose and cause a clot in the lungs or brain. The owner and the vet need to be aware of the presence of the worms in order to watch out for this potentially fatal consequence. |
It can happen irregardless. I still think it is better than nothing. The dog can also DIE from heartworms.
