An electromyogram is an exam used to assess neuromuscular diseases. It assesses the function of muscles, nerves and neuromuscular transmission (between the nerves and the muscles).
How is it done?
The exam is performed by a specialist doctor.
It consists of two main parts: neurography (which studies nerve conduction speed by applying electrical stimuli to the nerves) and electromyography (which assesses muscular activity while at rest and during voluntary contractions by inserting tiny needles into specific muscles). When undergoing an electromyogram, the patient should be as still and relaxed as possible.
The doctor will then prepare the examination report.
No special preparation is required. Avoid applying creams or lotions on the day of the exam. You should wear clothing that provides access to the area to be studied or clothing that can be removed easily.
How long does it take?
The exam takes between 30 and 60 minutes depending on the pathology being studied.
Is there any risk involved?
You may feel some discomfort after the electromyogram is performed. Small bruises may form around the site where the needle was inserted.
You should tell the doctor if you are taking oral anti-coagulants.