Final answer:
The next best test would be an echocardiogram, or an echo. An echocardiogram uses sound waves to create images of the heart and can provide detailed information about the structure and function of the heart, including the valves.
Step-by-step explanation:
In this case, the next best test would be an echocardiogram, or an echo. An echocardiogram is a test that uses sound waves to create images of the heart. It can provide detailed information about the structure and function of the heart, including the valves. By performing an echocardiogram, healthcare professionals can further evaluate and diagnose valve disorders as well as other heart pathologies.