Electrocardiogram test is taken to test the electrical activity in the heart. It shows if the heart is functioning normally or not. ECG records the rhythm of the heart on a moving piece of graph paper and can be seen as a line on the screen. The doctors interpret the peaks and dip to evaluate the activity of the heart. The test is painless and safe and can be completed in a few minutes. It can detect cholesterol clogging, heart attack, heart enlargement and abnormal rhythms of the heart.
Electromyography (EMG) measures the nerve stimulation of the muscle through electrical activity. It is used to detect neuromuscular disorders. The test diagnosis three conditions that can interrupt normal muscle contraction including muscular dystrophy, diseases related to neuromuscular junction and nerves and nerve roots disease. People with muscle weakness are recommended to take the test.
Electroencephalogram (EEG) is a test to measure the electrical activity of the brain. It records the brain wave patterns. EEG is taken to identify and monitor seizures. It is also used to identify other issues like sleep disorders and behavioural changes. It is used to assess the brain activity before heart or liver transplant and after a head injury.