CLARKE ATKINS, DVM, DIPLOMATE ACVIM (Internal Medicine and Cardiology)
Feline heartworm disease (HWD) has a low index of suspicion and is significantly under-diagnosed. Knowing when to test cats for HWD—and whether to test them—is important. The challenge boils down to this: no single test can accurately detect heartworms at all stages in cats. Thoroughly understanding the limitations of antigen and antibody tests is necessary to utilizing these assays with confidence.