06/24/2026
This patient tested positive for heartworm on a routine 4DX test—and what you’re seeing under the microscope is a live microfilaria (baby heartworm) in the bloodstream (arrow shown).
Heartworms are spread by mosquitoes and can quietly cause life-threatening damage before you ever see symptoms.
The silver lining?
💊 Heartworm disease is 100% preventable with monthly prevention.
We carry trusted preventatives in-hospital and also offer easy ordering through our online pharmacy.