At the offices of Richard H. Kaplan, M.D., P.C., we provide electro-diagnostic testing for victims of accidents and illnesses in the greater Philadelphia region, including Bucks and Montgomery Counties.
Electromyography (EMG) is a diagnostic test that helps detect neuromuscular abnormalities by measuring electrical activity in the muscles. Electromyography (EMG) is an integral part of physical medicine and rehabilitation practice. It is a method of obtaining information about diseases by passively recording the electrical activity of body parts or by measuring their response to external electrical stimulus.
Nerve conduction studies show how well the body’s electrical signals are traveling to a nerve. This is done by applying small electrical shocks to the nerve and recording how the nerve works. These shocks cause a quick, mild, tingling feeling. The doctor may test several nerves.
Your doctor may order an EMG if you have signs or symptoms that may indicate a nerve or muscle disorder. Such symptoms may include:
• Muscle weakness
• Muscle pain or cramping
• Certain types of limb pain
For this test, a small, thin needle (electrode) is inserted through the skin and into the muscle to see if there are any problems. Once the electrode is in place, the patient will be asked to either contract their muscles or keep their muscles relaxed. There may be a small amount of pain during this part of the examination.
The doctor tests only the muscles necessary to decide what is wrong. During the EMG test, the doctor will be able to hear and see how your muscles and nerves are working, by the electrical signals made by your muscles. Results will be displayed on a nearby monitor (oscilloscope).
How to prepare for your test:
• Avoid using any creams or lotions on the day of the test.
• Fasting is usually not required, but, in some cases, patients will be asked to refrain from smoking cigarettes or drinking caffeinated beverages for up to 2-3 hours before the test.
• Notify your physician if you have a pacemaker.
• Tell your physician about all the medications and herbal supplements you are taking.
• Dress in clothing that enables easy access to the area to be tested.