4-H Livestock Skillathon Practice Exam

Access More Questions

A 6-week-old former term infant presents with recent onset of progressive dyspnea with feedings, diaphoresis, and poor weight gain. Exam reveals tachypnea, an active precordium, a Grade III/VI holosystolic murmur, and hepatomegaly. What is the most likely underlying mechanism of this patient's condition?

Right-to-left intracardiac shunting Left-to-right intracardiac shunting Left ventricular outflow tract obstruction Right ventricular outflow tract obstruction

Correct Answer:

Left-to-right intracardiac shunting

Explanation:

The infant's presentation of diaphoresis with feeds, failure to thrive, hepatomegaly, and a holosystolic murmur is classic for congestive heart failure secondary to a Ventricular Septal Defect (VSD), which causes left-to-right intracardiac shunting.

Access more questions from this quiz

Continue to 4-H Livestock Skillathon Practice Exam for more practice questions and the full quiz experience.

Access More Questions