09/02/2026
What Are Your Major Rule-Outs?
1. Not normal — dietary disease
2. Not normal — hereditary disease
3. Not normal — infectious disease
4. Normal — this is a shelter puppy, so send home with antibiotics for “kennel cough”
The correct answer is 3: infectious disease.
This cardiac presentation is classic for Chagas disease, which is common enough in South Central Texas to be an important differential diagnosis. Chagas is caused by infection with Trypanosoma cruzi and can cause myocardial dysfunction and ultimately congestive heart failure. This young dog also had B lines consistent with pulmonary edema.
Without a Global FAST® examination, this young dog could easily have been diagnosed with “kennel cough” and sent home with antibiotics—despite having a serious underlying disease.
Our recent Reels reviewed the Global FAST® Fallback Views, which are important to combine with TFAST® fundamental echocardiography. This puppy had B lines on Vet BLUE ® lung ultrasound and findings were consistent with pulmonary edema.
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