Which test uses ultrasound to visualize the heart’s structure and movement?

• A. Electrocardiogram (EKG)
• B. Echocardiogram (Echo)
• C. Exercise tolerance test (ETT)
• D. Gallbladder

Answer: (B)

This question is about identifying the imaging method that uses ultrasound to visualize the heart’s structure and movement. An echocardiogram uses high‑frequency sound waves to create real-time images of the heart, showing the chambers, valves, and wall motion, and it can assess function with Doppler to evaluate blood flow. It’s noninvasive and can be done from the chest wall (transthoracic) or via a probe placed in the esophagus (transesophageal) for closer views.

In contrast, an electrocardiogram records the heart’s electrical activity, not its structure. An exercise tolerance test measures how the heart performs under physical stress and often includes ECG monitoring rather than imaging. A gallbladder ultrasound images abdominal organs, not the heart.

So the imaging modality that uses ultrasound to visualize the heart’s structure and movement is the echocardiogram.