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 major advantage of the oscilloscope over other measuring devices used in the lab such as the DMM is the fact that we can measure the amplitude of the signal, the frequency of a signal and we can also see if the signal is of the shape that we are expecting.