75 results found
Medical tests
Medical tests
Medical tests
… Electromyogram (EMG) and Nerve Conduction Studies On this page: Test Overview Why It … Test Overview An electromyogram (EMG) measures the electrical activity of muscles when they're at rest and when … studies measure how well and how fast the nerves can send electrical signals. Nerves control the muscles in the body …
Medical tests
… An evoked potential test measures the time it takes for nerves to respond to stimulation. The size of the response is also measured. … when the nerves of the arms and legs are stimulated by an electrical pulse. Each type of response is recorded from …
Medical tests
… Feels Risks Results Test Overview Vision is the result of electrical signals that travel between the retina and the … Electrophysiology tests check to see how well this visual nerve pathway sends the electrical signals needed for … is given.) Abnormal. There is a delay between the eye's stimulation and the nerve's response. Abnormal results may …
Medical tests
… (EKG or ECG) is a test that checks for problems with the electrical activity of your heart. An EKG shows the heart's electrical activity as line tracings on paper. The spikes … The two lower chambers are called ventricles. A natural electrical system causes the heart muscle to contract. This …
Medical tests
… (EEG) is a test that measures and records the electrical activity of your brain. Special sensors called … by wires to a computer. The computer records your brain's electrical activity on the screen. Or it may record the … on paper as wavy lines. Changes from the normal pattern of electrical activity can show certain conditions, such as …
Medical tests
Medical tests
Medical tests
… The electrodes collect information about your heart's electrical activity. Your doctor can tell what kind of heart … An electrophysiology study is used to check your heart's electrical system. For example, it may be done to: Identify … are connected to an EKG machine that keeps track of the electrical activity of your heart during the test. A device …
