The test also will help your doctor find out if there are: 1  Problems with the outer lining of your heart (the pericardium). 2  Problems with the large blood vessels that enter and leave the heart. 3  Blood clots in the chambers of your heart. 4  Abnormal holes between the chambers of the heart.
Part of the Electronics glossary: An oscilloscope is a laboratory instrument commonly used to display and analyze the waveform of electronic signals. In effect, the device draws a graph of the instantaneous signal voltage as a function of time.
The uses of an oscilloscope are many and varied. The most common use of oscilloscopes is to diagnose electronic equipment malfunctions. Oscilloscopes allow technicians to get a look at what the voltage is doing over time; whether, for example, it is oscillating or not.