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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 days are getting shorter, the nights are cooler, leaves are starting to turn, and football season is here. But that doesn’t mean your clients can forget about protecting their pets from heartworms.

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!