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In this section, we have leaflets for the Clinical Neurophysiology department. Please only read the materials on the advice of your clinician.

The Recite Me accessibility tools can be used if you need assistance.

 

 

EEG Adult

EEG stands for Electroencephalogram, a recording of the electrical signals produced by the brain. In the media it is sometimes referred to as recording brainwaves.

The EEG gives information about the brain that is useful to your doctor in making a diagnosis in several different conditions. It is the only test that can produce this sort of information, but your doctor may also want to get information from other tests.

 
 

EEG Child

The test will be carried out by a clinical physiologist, who will meet you and your child in our waiting room and take you to the recording room. We shall explain the test, and this is a good time to ask any questions you still have. The clinical physiologist will also ask you about your child’s particular problem and about their health in general. He or she will also ask you to sign a consent form.

 
 

Prolonged EEG Recording

This hospital performs two types of Prolonged EEG Recording:

  • Multiple Sleep Latency Test (MSLT)
  • Ambulatory EEG Recording (24/48 hours)

Your test will be carried out by a clinical physiologist, who will meet you in our waiting room and take you to the recording room. We shall explain the test to you and this is a good time to ask any questions you still have. The clinical physiologist will also ask you about your particular problem and about your health in general. The clinical physiologist will measure your head and make marks with a skin pen. At each mark, he or she will rub the skin and attach a small metal disc through which the recording is made. It is held in place with a sticky paste.

 
 

Evoked Potentials

These are a group of diagnostic tests which record the electrical signals produced naturally by the brain following repeated stimulation.

  • Visual Evoked Potentials (Eyes)
  • Electroretinogram (Eyes)
  • Auditory Evoked Potentials (Ears)
  • Somato-sensory Evoked Potentials (Arms and Legs)

Your doctor may ask us to test one or more of these.

 
 

Nerve Conduction Studies and EMG

Nerve conduction studies (NCS) are recordings made of the electrical activity from nerves and muscles in response to stimulation.

EMG stands for Electromyogram, a recording of the electrical signals produced naturally by muscles.

These two kinds of study may be used together or separately, and we often just call them EMG. They give information about nerves, muscles and the connections between them. The information may be useful to your doctor in many different types of condition.

Your doctor may have to combine this information with other types of information to make a diagnosis.

 

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