EEG Board Prep 120

A high frequency setting of 35 Hz would attentate 50 Hz muscle activity by approximately:

Nasopharyngeal or T1/T2 electrodes most helpful recording epileptiform dischages associated w/

The Glasgow scale is used to describe

A patient complaining of right hemiplegia will have

Normal alpha, in an adult, should NOT be seen

Action potential is immediate result of which of the following changes in the neuronal membrane

The EEG of an aphasic patient whose CT revealed subdural hematoma most likely shows:

Port wine stain is associated with:

In a referental montage, how is the origin of a potential determined?

Cafe-au-lait spots and neurofibromas are associated with:

The presence of sleep spindles in the EEG signals what stage of sleep?

Combination of electronic components designed to increase power, voltage or current of signal:

Which of the following conditions is characterized by rigidity, tremors, & festination?

Which EEG patterns carries poor prognosis & is often result of a respiratory or cardiac arrest

Sodium amytal is used for

Which of the following best describes lambda waves?

What needs adjustment when unequal spacing b/t lines of channels w/amplifiers in off position

The basic unit of resistance is

The midbrain, pons and medulla comprise the

The EEG amplifier is designed, when input 1 is more negative than input 2, deflection is:

A spike measuring 16 mm peak-to-peak, is recorded at a sensitivity of 10 μV/mm.  Voltage?

Calibration input V changed 50 μV to 100 μV during recording of cerebral activity, results in

Juvenile myoclonic epilepsy is classified as

Two important functions of the medulla are:

A subarachnoid hemorrhage occurs:

Without dietetic treatment, hereditary ds may cause severe mental retardation &infanitle spasms

Which of the following would NOT be considered a normal EEG pattern for a fullterm infant?

Thrombosis of the anterior cerebral artery is most likely to cause:

EEG activity associated w/rapidly growing tumors (glioblastoma multiform & cerebral metastatic)

The purpose of the multiple sleep latency test (MSLT) is to

This type of pattern is a very common finding in:

Diagnosis of generaastrocytoma in left frontal lobe is most likely to produce which EEG finding

A normal waking & sleeping adult EEG recording will NOT include this feature

Photic driving

The tracts connecting the right and left hemispheres are called the:

Which of the following is NOT a unit for measing alternating frequencies?

The resting potential os a neuron is:

The Foramen of Munro is the opening:

Substantia nigra is affected in what disorder?

EEG pattern, associated w/herpes encephalitis, CVAs, brain abscess, & other acute brain injury

Channel A recorded using standard settings, what instrument change has been made in channel B?

QRS complex refers to

Which of the following is NOT a phsyiological artifacts?

Herniation of the uncus results in compression of which cranial nerve?

Electrode site 1 cm above 1/3 distance from left external auditory meatus to left outer canthus

This test is useful in diagnsis of multiple sclerosis, pontine angle tumors, coma & brain death

A circuit that allows some frequencies to pass through it, while others are blocked is a:

WADA testing is done to determine

Time constant is defined as the time required for the pen to fall:

An asymmetry of the occipital alpha rhythm voltage from the 2 hemispheres should be no >

6 to 7 Hz theta activity is typically seen in a normal adult in which of the following?

Common mode rejection is:

Which of the following is related to an alpha coma pattern?

Generalied spike activity without correcting instrument error, the EEG could be interpreted as:

When recording ECI, sensitivity should be __ μV/mm and the LFF should not be > __ Hz.

The distance from Cz to Pz is 6.8 cm.  What is the distance from nasion to inion?

The sella turcica:

Inflammation of the coverings of the brain or spinal cord is called:

Which of the following is most attenuated by a low frequency filter of 1 Hz?

3/sec spike/wave discharge both 100 μV. LFF: 5 Hz, Sensitivity: 10 μV/mm, pen deflection?

Positron emission tomography (PET) is used for

Symmetry of sleep spindles, when present, is important in the evaluation of:

Due to a central scalp lesion, C4 has been relocated 4 mm anteriorly. The tech should:

The filters creating a very narrow bandpass that should rarely be used clinically are:

When recording for electrocerebral inactivity, the interelectrode distance should be at least:

The central sulcus (fissure of Rolando) demarcates the:

The sleep disorder that occurs most commonly in the adult population is

Which of the following is NOT related to measuring electrode resistance?

A highly malignant tumor primarily seen in children may be:

The ratio of chest compressions to breaths in one-person CPR is:

Increasing depth of anesthesia causes which of the following sequences of EEG changes?

Channel B requires what adjustment?

A patient can become the pathway of least resistance & electrically susceptible when:

A common seizure in neonates is

Which oof the following is NOT a characteristic of REM sleep?

Intracranial hemorrhage from middle cerebral artery would most likely produce an EEG finding of

Scalp EEG is a result of summation of charges in which of the following cortical cells?

Alpha frequency of 10/s, how many of waves will occur in 30 mm at slow paper speed of 15 mm/s?

Of the following, which would be most benificial in evaluating suspected narcolepsy?

Thrombosis of the right middle cerebral artery would most likely cause:

When performing EEG for evaluation of CNS disease that may have infectious etiology,tech should

What input voltage necessary to give deflection between 5 & 10 mm, sensitivity is 30 μV/mm?

Which infection is most likely to produce headache, fever, nuchal rigidity, coma & death?

Eye leads placed at the outer canthus of each eye will record

The dance-like movements of the head & extremities may be exhibited in a patient with:

The pattern is recorded from a drowsy 6 year old is:

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

Which of the following describes the action of a capacitor?

Which electrodes do NOT record directly from the brain?

The diencephalon is composed of:

Interictal discharges in pts w/complex partial seizures are most likely recorded in the EEG

Which of the followig is NOT a source of 60-Hz interference?

Electrocerebral inactivity is defined as no elecrical activit greater than

Brainstem injury in a patient who is completely paralyzed except for vertical eye movements?

Pattern, from 10 y.o. w/progressive deterioration of mental function, myloclonic szs, indicate

When seen in the waking records of adolescents, posterior slow waves of youth

When recorded from over a burr hole, the EEG may show

Petechiae are

Activation of an absence seizure is most consistently obtained during

When recording for ECI, interelectrode impedances should be at least __ Ω, but less than __Ω.

The term "xanthochromic" is usually used in reference to

A small fluctuating output recorded by the EEG instrument even when there is no input signal:

The best metals for clinical EEG recording are

Which medications can commonly cause increased theta and beta activity at therapeutic doses?

The drug of choice for complex partial seizures is

Method for monitoring infusion motor artifact from IV infusion pumps is place 2 electrodes on

What is phase change seen when comparing a recording using LFF of 1 Hz to 1 using LFF of 5Hz?

The basic unit for measuring current flow is

Head injury = temporal LOC, followed by confusion, severe HA, & possibly amnesia for accident

The trigeminal nerve

Which of the following is NOT a valid expression of Ohm's law?

The homunculus is a:

The triad of caraplexy, sleep paralysis, and hypnagogic hallucinations is seen in

Paper speed changed to clarify origin of spikes.  How many pages will be recorded in 2 minutes?

Cardiovascular & respiratory centers for automatic control of HR & respiration rate, found in:

Fasciculation refers to

A patient with sensory aphasia will have difficulty

This pattern is associated with thich of the following viral disases

Phenytoin: little effect EEG therapeutic levels; approaching toxic levels can cause EEG change?

What is the focus and polarity?