The diagnostic test for cardiovascular disease in which electrodes are placed on the skin to detect the heart's electrical signal is called

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

Electrocardiogram

A medical test that measures the electrical activity of the heart to assess heart health and diagnose various heart conditions.

Electrodes

Conductive pads or probes used to detect electrical signals in scientific studies and medical applications.