4Dx Positive

A 1-year-old, FS, Australian Shepherd mixed breed canine was presented for acute onset of collapse/dizziness. This was the first episode that the patient ever had; patient was BAR prior. Hepatomegaly was seen on radiographs. Blood chemistry showed an elevated ALT, CBC/UA were WNL. 4DX heartworm test was positive, Lepto test was negative.