If the ECG machine malfunctions you will need to redo the test. You can try unplugging the machine and replugging it to see if that resets the system.
It can be tested with something called an ecg simulator.
An ECG or EKG machine is a machine that allows the heart to be studied.The machine records the electrical activity with in the heart.ECG means Electyocardiograph
ELECTROCARDIOGRAPH
An ECG (Electrocardiography) machine.
It is a defect or malfunction in a machine or plan
an ecg machine
LEAD DISPLACEMENT
As a verb: The machine will malfunction without enough oil.As a noun: This malfunction is due to lack of oil.
Willem Einthoven Invented the accurate ECG using Strings Galvonometer, but Alexander Muirhead made the first prototype.
Any piece of technology can malfunction. The best person to find out if your machine has malfunctioned is a factory trained repair technician.
The machine had stopped working due to a malfunction in its engine.
The mugger's pistol's malfunction proved to be very beneficial to my health.