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Does a dog with a positive Ag test and negative MF test need to be treated for heartworms?

The results of heartworm tests can sometimes raise questions as well as provide answers. This Clinical FAQ uses an algorithm to explain what veterinarians can conclude from differing test results

Bored cat

Feline heartworm: Are YOU looking for it?

In this article, which was published in VETgirl's e-magazine, Dr. Tom Nelson explains the "how tos" of feline heartworm diagnosis.

New AHS Heartworm Incidence Map

In this Clinical Q&A, AHS President Dr. Jenni Rizzo explains the findings of the 2022 Heartworm Incidence Survey and what they tell us about the spread of heartworms in the U.S. as well as long-timer and emergy "hot spots."

Which heartworm preventive is best?

With so many heartworm preventives available, it's not unreasonable for clients--and even veterinarians--to wonder which one is "best." The truth is that the BEST preventive is--quite simply--the preventive a pet owner will GIVE. As Dr. Elizabeth Clyde explains, factors like cost, covenience, mode of administration and frequency of administration all come into play.

Patient Management after Two Melarsomine Injections

A newly adopted patient received two injections instead of three when treated for heartworm. Veterinarian Angele Bice explains.

Managing Heartworm Disease in Zoo Animals

Zoo animals like marine mammals, big cats and others can become infected with heartworms. Fortunately, prevention is possible.

When a Treated Dog has Persistent Microfilaria

When a Treated Dog has Persistent Microfilaria

Dr. Tom Nelson explains the potential reasons a dog may test positive for microfilaria following heartworm treatment

Role of Antigen and Antibody Testing in Heartworm-Positive Cats

Role of Antigen and Antibody Testing in Heartworm-Positive Cats

Veterinary parasitologist Dr. Lindsay Starkey outlines the role of antigen and antibody tests for heartworm screening in cats

Exercise Restriction Advice for Dogs Undergoing Heartworm Treatment

Exercise Restriction Advice for Dogs Undergoing Heartworm Treatment

Successful treatment of dogs with heartworm infection requires keeping them quiet and calm, as Dr. Brian DiGangi explains.

How to Treat Heartworm-Positive Cats

How to Treat Heartworm-Positive Cats

There are no approved heartworm treatments for cats, but veterinarians do have options when managing these patients. Veterinary cardiologist Dr. Marisa Ames explains.

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