Using a transducer to transmit ultrasound waves into the chest is a diagnostic test for cardiovascular disease called

A) a chest X-ray.
B) an electrocardiogram.
C) an echocardiogram.
D) computed tomography.

Using a transducer to transmit ultrasound waves into the chest is a diagnostic test called an echocardiogram, which is used to evaluate the structure and function of the heart, and is commonly used to diagnose cardiovascular disease. A chest X-ray, on the other hand, uses ionizing radiation to create images of the chest and is not typically used to diagnose cardiovascular disease. An electrocardiogram measures the electrical activity of the heart and is used to diagnose heart rhythm abnormalities. Computed tomography is a type of imaging that uses X-rays and is used to diagnose a variety of conditions, including cardiovascular disease, but is not typically used as a first-line test for cardiovascular disease.