Failed test questions 3 up to ? 190

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Tim constant is expressed in

Seconds

Benzapdiazepines such as ativan (Lorazepam) at therapudic levels can cause

frontal central beta

International classification of Epilepsies & Epileptic sndromes places juvenile myoclonic epilepsy under what category

generalized epilepsies and syndromes

Which of the following is a characteristic of REM sleep

low voltage mixed freq EEG activity reduced EMG activity saw tooth waves

Acns guidelines state that vertical scaling on digital EEG instruments shoud be a minimum of ______ per channel when displaying up to ____channels

10mm 21

Beta delta complesed are seen after what week in infants

39wks

Asymmetry of the occipital alpha rhythm voltage from the two hemispheres should be NO greater than what percentage apart

50%

what sensitivity should be used to resolve the morphology of a 500uV spike discharge

50uVmm

An EEG instrument's common mode rejection ratio should be? High or Low

High

EEG activity is most often appears in association with rapidly growing tumors such as glioblastoma multiforme and cerebral metastatic lesions

Polymorphic delta activity

confused state , left arm and left facial twitching will show what EEG pattern

Right temporal central epileptiform activity

K complexes are seen in what stage of sleep

Stage II III

Symmetry of sleep spindles when present is important in the evaluation of...

The physiological maturation of an infant

Normal EEG pattern for a full term infant

Trace Alternant isolated frontal sharp waves bursts suppression

Creutzfeldt jacob disease EEG patern

What pattern is seen? Question 110

What autosomal disorder of copper metabolism also called hepatolenticula degeneration and what are the symptoms

Wilson's disease ( wilson needs copper) Symptoms: behavioral changes, ataxia, dysarthia and abnormal mvmts as well as hepatic dysfunction

family history of epilepsy is especially important to determine the diagnosis of...

classic absence seizures

Nasopharyngeal or T1/T2 aka F9/f10 electrodes ore mont helpful in recording discharges associated with what type of sz classification

complex partial sz

A short time constant results in

decreased in slow activity

How would a 15 hz HFF affect 15hz sleep spindles?

decreases amplitude by 30%

sampling skew is a problem with early digital EEG instruments caused by

inability to simultaneously sample multiple channels of EEG

increasing depth of anestesia caused which sequences of EEG changes

increased beta then intermixed theta then delta with bursts supression if anesthesia is deep enough

Antidepressants cause what EEG abnormality

increased theta and beta activity at therapeutic doses

How will changing the timbase/epoch/equivalent paper speed from 10 sec to 20 sec alter a 12hz alpha rhythm

it will be compressed (bunched up)

Some characteristics of REM are

low voltage mixed freq activity reduced EMG activity saw tooth waves

A longer time constant results in

mor slow frequencies recorded

Rhythmic focal activity is common for what age

neonates

Impedance is the

opposition to the flow of alternating current

When seen in the waking EEG of adolescents, posterior slow waves of youth attenuate when

pt opens eyes

A common seizure pattern in neonates is

rhythmic focal activity

Phenytoin (Dilantin) will have little effect on the EEG at therapeutic levels however when approchin toxic levels the drug can cause what on EEG

slowing in the background alpha

Resistance describes

the forces opposing direct current flow

A recommended method of monitoring infusion motor artifact from IV infusion pumps is to place two electrodes on ...

the infusion pump apparatus

normal patterns for a full term infant are

trace alternant isolated frontal sharp waves beta-delta complexes in quiet sleep

Electromotive force is measured in

volts


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