Pets don’t need the annual heartworm test if they are on preventatives

Even if your pet has been receiving preventive treatment for a year, this does not mean that you have to skip the annual heartworm test. According to animal experts, in many cases, heartworm preventives are really efficient, but you can’t be entirely sure of that.

Unfortunately, there are some cases of dogs that receive treatment to prevent this disease, but they still become infected. So, you should take into consideration that the heartworm test, if you want your dog to be healthy and safe. “I’ve had two cases of dogs with heartworm who were on monthly preventatives and didn’t miss doses,” says Dr. Jeffrey.

“The best of pet owners can be forgetful, and missing just one dose of a monthly medication—or giving it late — can leave a dog unprotected. And even if you do everything right and on time, it’s no guarantee. Some dogs spit out their heartworm pills when their owners aren’t looking. Others may vomit their pills or rub off a topical medication. Fortunately, heartworm tests are safe and can be conducted during your pet’s annual checkup,” advises Dr. Rehm.