Canine Heartworm Disease Testing 

A simple blood test called an occult heartworm test can detect a few as 2-3 worms in heartworm positive dogs. Most veterinary clinics require this test yearly and certainly before putting your dog on a monthly heartworm preventative. NOTE: This test only detects adult heartworms. If your dog has been infected by a mosquito within 6 months (the minimum age of an adult heartworm) of the test, your dog may become positive later.

Back to Heartworm Disease Page