An EEG is atest done on equipment made by EEG machine manufacturers that notices
irregularities in your brain waves, or in the electrical activity of your
brain. During the process, electrodes comprising small metal discs with thin
wires are glued onto your scalp. The electrodes notice minute electrical
charges that result from the activity of your brain cells. The charges are
augmented and appear as a chart on a computer screen, or as a recording that
may be reproduced on paper. Your healthcare provider then construes the
analysis. 

During an EEG,your healthcare provider characteristically assesses about 100 pages, or
computer screens, of activity. He or she pays special care to the rudimentary
waveform but also inspects brief bursts of energy and responses to incentives,
such as flashing lights. Evoked possible studies are related actions that also
may be done. These studies gauge electrical action in your brain in response to
the stimulus of sight, sound, or touch. 

Why may I needan EEG? 

The EEG is usedto assess several kinds of brain disorders. When epilepsy is existing, seizure
activity will look as rapid spiking waves on the EEG. People with lacerations
of their brain, which can outcome from tumors or stroke, may have remarkably
slow EEG waves, contingent on the extent and the location of the laceration.
The examination can also be used to identify other illnesses that influence
brain activity, such as Alzheimer's illness, certain psychoses, and a sleep
complaint called narcolepsy. The EEG may also be used to regulate the overall
electrical activity of the brain (for instance, to assess trauma, drug
intemperance, or amount of brain damage in comatose patients). The EEG may also
be used to screen blood flow in the brain during operating procedures. There
may be other motives for your healthcare provider to endorse an EEG. 

What are thedangers of an EEG? 

EEG has beenused for countless years and is considered a safe process. The examination
causes no uneasiness. The electrodes note activity. They do not yield any
feelings. In addition, there is no danger of getting an electric tremor. In
rare examples, an EEG can reason seizures in a person with a seizure disorder.
This is due to the blinking lights or the deep breathing that may be involved
during the examination. If you do get a convulsion, your healthcare provider
will treat it instantly. 

What occursduring an EEG? 

An EEG done onequipment bought from EEG Machine Manufacturers maybe completed on an outpatient basis, or as a portion of your stay in a
hospital. Actions may vary contingent on your condition and your healthcare
provider's practices. Talk with your healthcare provider about what you will
knowledge during your examination. 

Normally, anEEG process follows this process: 

1. You will be requested to diminish in a reclining chair or lie on a bed. 
2. Between 16 and 25 electrodes will be committed to your scalp with a special adhesive, or a cap containing the electrodes
   will be used. 
3. You will be requested to close your eyes, relax, and be motionless. 
4. Once the recording commences, you will need to remain motionless throughout the test. Your healthcare provider may screen
   you through a window in a connecting room to detect any movements that can
   reason an erroneous reading, such as swallowing or blinking. The recording
   may be stopped occasionally to let you rest or relocate yourself. 
5. After your healthcare provider does the early recording while you are at rest, he or she may scan you with various
   impetuses to yield brain wave activity that does not show up while you are
   resting. For instance, you may be requested to respire deeply and rapidly
   for 3 minutes, or you may be exposed to a bright blinking light. 
6. This study is usually completed by an EEG technician and may take about 45 minutes to 2 hours. 
7. If you are being assessed for a sleep complaint, the EEG may be done while you are asleep. 
8. If you need to be observed for a lengthier period, you may also be admitted to the hospital for protracted EEG
   (24-hour EEG) monitoring that can be done on equipment supplied by the
   EEG Manufacturer. 
9. In cases where protracted inpatient monitoring is not conceivable, your doctor may reflect on doing an ambulatory EEG. 

What occursafter an EEG? 

Once theexamination is completed, the electrodes will be detached and the electrode
adhesive will be eroded off with warm water, acetone, or witch hazel. In some
situations, you may require to wash your hair again at home. If you took any
tranquilizers for the examination, you may be required to rest until the
tranquilizers have worn off. You will require to have somebody drive you home. 

Skin annoyanceor redness may be current at the sites where the electrodes were positioned,
but this will wear off in a few hours. Your healthcare provider will inform you
when you may recommence any drugs you stopped taking before the examination.
Your healthcare provider may give you supplementary or alternate directions
after the procedure, contingent on your particular situation.