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Blocked Antigen Causes False-Negative Heartworm Test Results

Blocked Antigen Causes False-Negative Heartworm Test Results

The American Heartworm Society and Companion Animal Parasite Council recommend 2 components for diagnosing heartworm infection in small animal patients: antigen detection assay and microscopic identification of Dirofilaria immitis microfilaria. The antigen test is generally considered the more sensitive test, but studies estimate that 6.0% to 38.7% of microfilaria-positive samples produce negative antigen test results.

 

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The colors are changing but your clients’ heartworm prevention programs shouldn’t. To help spice up your client outreach programs this fall, the AHS has created a new set of posters you can print or post on your social pages.

To keep this message front and center with your clients, we’re sharing a set of new posters you can print OR post on your Facebook or Instagram page.

  • To save or print a poster, just click on the image below, then click on the “download” button and save the PDF file.
  • To save a poster for use on your social pages, simply open the downloaded poster, then right click on the file and follow the menu instructions to save the file as a JPEG image.

For more client tools, be sure to visit the Resource Center. And if you don’t already, make sure you’re sharing our Facebook and Instagram posts!