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ABRET R.EEG.T Study Guide - Activation Procedures/9 Questions And Answers (A+)
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ABRET R.EEG.T Study Guide -Activation Procedures/9 Questions
And Answers (A+)
Quiz :Why is sleep deprivation considered an activation
procedure? - √Answer :24-36 hours of continuous waking time
may stress a potentially epileptogenic brain so that
abnormalities will appear in the waking EEG
Quiz :What type of epilepsy is most likely to show abnormalities
during sleep? - √Answer :Patients with complex partial seizures
or Foci in the temporal lobes are especially likely to appear in
sleep. Sleep should be a routine procedure for patients who
have or are suspected of having seizures of any type
Quiz :What is hyperventilation (HV)? - √Answer :Deep and
rapid breathing usually for a period of 3-4 mins. Used as an
activation procedure; especially potent for activating absence
seizures
Quiz :What are the clinical effects of hyperventilation? -
√Answer :HV causes hypocapnia (decreased CO2 in the
system). Clinically characterized by cerebral symptoms
including dizziness and even loss of consciousness; also by
peripheral symptoms such as tingling in the hands, feet, and
mouth. Drowsiness.
Quiz :What electrographic changes are seen during
hyperventilation (HV)? - √Answer :Normal responses consist of
generalized bilaterally synchronous slow waves that begin
soon after HV; often called a "build-up". Abnormal responses
consist of asymmetrical responses and epileptiform discharges.
Spike and wave discharges of 3 hz are often activated by HV
Quiz :What are contraindications to HV? - √Answer :1) Acute
stroke
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