EEG 101 FINAL EXAM Questions with 100% Verified Answers Latest Updates 2024 GRADE A+, Exams of Nursing

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EEG 101 FINAL EXAM Questions with 100%

Verified Answers Latest Updates 2024

GRADE A+

_____ is seen in the central regions during Stage II sleep. a. Beta b. Theta c. Sleep Spindles d. Polymorphic Delta c. Sleep spindles

Which filter is used to eliminate artifact caused by electrical interference? a. 10 Hz b. 15 Hz c. 35 Hz d. 60 Hz e. 70 Hz d. 60 Hz is specific in eliminating electrical or 60Hz artifact

A spike that has a frequency of 16 Hz has a duration of a. .06 sec. b. .6 sec. c. .6 milliseconds d. 600 milliseconds a. .06 sec. Duration = 1 divided by the duration

All of the following are true of alpha EXCEPT a. is a frequency of 9-10 Hz in the alert, awake adult b. is seen in the posterior head regions c. attenuates with eye opening and accentuates with eye closing d. is frequently seen in the front-central regions of the alert, awake adult

d. is frequently seen in the front-central regions of the alert, awake adult

What affect would changing the HF from 70Hz to 30Hz have on a spike and wave complex? a. no affect b. will decrease the frequency of the spike and wave complex c. will decrease the amplitude of the slow wave d. will decrease the amplitude of the spike d. will decrease the amplitude of the spike HF affects fast wave. Spikes are fast and change in the HF will decrease the amplitude of the spike.

Beta activity is a. seen in the frontal regions of the alert, awake, relaxed adult b. is frequently seen in the occipital regions during drowsiness c. accentuates with eye opening d. is always indicative of barbibuate use a. seen in the frontal regions of the alert, awake, relaxed adult

_____ is 1 divided by the duration of the wave in seconds. a. duration b. frequency c. voltage d. amplitude b. frequency

What is the basic functional and structural unit of the nervous system? a. neuron b. myelin sheath c. electron d. axon a neuron

_____ is seen in drowsiness at frequency of 4-7hz a. alpha b. beta c. theta d. delta c. theta

A slow wave having three phases +,-,+ or - ,+,- and that is seen in the variety of metabolic disorders is a. triphaisc b. complex c. transient d. sharp a. triphaisc

A slow wave has a duration of a. > 200ms b. 70-200ms c. <70ms d 20ms

200ms

While recording an EEG your patient has a generalized Toni-Clonic sz. What should you do? a. Call a code b. place a tongue depressor in the patient mouth c. turn the EEG machine off d. roll the patient on their side, insure an open airway and loosen any tight clothing d. roll the patient on their side, insure an open airway and loosen any tight clothing

What in a digital recording allows for changing the montage at a time after the pt. leaves the lab? a. reformatting b. analog to digital convert c. common mode rejection d. Nyquist theorem a. reformatting

________ is seen the occipital region of an alert, relaxed adult. a. Alpha b. Beta c. Theta d. Delta A. Alpha

The ACNS quidelines recommend a minimum of ______ channels of

simultaneous recording for routine EEG's A. 16 B. 19 C. 21 D. 32 A. 16

1Hz wave has a duration of A. 100 ms B. 200ms C. 400 ms D. 1000ms D. 1000 ms

If input 1 is relatively more negative then input 2 the pen will A. Deflect up B. Deflect down C. Will remain flat D. Go up and down at the same time A. Deflect up

If the duration of the wave is 2sec. The frequency would be A. 1Hz B. 2Hz C. 5Hz D. 10Hz C. 5Hz

If a patient tongue deviates toward the right upon neurological examination, what dose this suggest? A. Contralateral weakness of the facial muscles B. Bilateral hypoglossal nerve lesion C. Right sided hypoglossal nerve lesion D. Right sided trigeminal nerve lesion C. Right sided hypoglossal nerve lesion

_______ is expressed in cycles per sec. (CPS) or (HZ)

A. Frequency B. Voltage C. Sensitivity D. Duration A. Frequency

A sharp wave has a duration of A. >200 ms B. 70-200 ms C. < 70ms D. 20 ms B. 70 - 200 ms

This pattern is seen in the normal premature neonate during quiet sleep and is described as night voltage slowing lasting 1-3 sec. Followed by periods of relative suppression. A. Active sleep B. Frontal sharp transients C. Trace Alternant D. Delta Brushes C. Trace Alternant

Sensitivity is measured in A. uv/mm B. uv C. MV D. cm A. uv/mm

Which cranial nerve is responsible for swallowing, taste, visceral sensory, and salivation? A. Trochlear B. Vagus C. Hypoglossal D. Glossopharyngeal D. Glossopharyngeal

Which of the following is violation of the ABRET Code of Ethics? A. Providing a physician from the ICU with an interpretation of the EEG you just recorded B. Using the R.EEG T. Credentials after passing Part 1 of the ABRET written EEG exam C. Writing down questions from the ABRET exam after the exam and sharing with your co-workers D. All of the above are violation of the ABRET code of ethics D. All of the above are violation of the ABRET code of ethics

Described as 7-11Hz activity seen in the central regions of alert awakes adults. A. Lambda B. Mu C. Alpha D. Trace' Alternant B. My

Which one of the following reflexes is characterized by extension of the big toe and fanning and extension of the remaining toes after the plantar surface of the foot? A. Pinprick B. Babinski reflex C. Phomberg reflex D. Patellar reflex B. Babinski reflex

Voltage is measured in A. uv/mm B. uv C. mm D. cm B. uv

What is know as a development abnormality consisting of a tangle of dilated blood vessels forming abnormal communication between arterial and venous system?

A hypoxia B aneurysm C arteriovenous malformation D. Sickle cell anemia C arteriovenous malformation

Which pattern is typically seen a variety of metabolic disturbances? A. Generalized triphasic waves B. Benign fronto central spikes C. Rhythmic midtemporal discharges D. Mu A. Generalized triphasic waves

_______. Is measured in microvolts (uV) A. Frequency B. Voltage C. Sensitivity D. Duration B. Voltage

At the age dose the differentiation between wakefulness and sleep first occur? A. 24-26 weeks CA B. 32-36 weeks CA C. 38-40 weeks CA D. 44-46 weeks CA B. 32-36 weeks CA

Intracranial bleeding may occur secondary to head trauma. What type of condition exist when blood collects between the dura and arachnoid layers of the meninges? A. Post traumatic syndrome B. Laceration C. Subdural hematoma D. Extradural hematoma C. Subdural hematoma

Stage II sleep (N2) A. Begins with the appearance of 20-50% delta activity B. Is characterized by the appearance of sleep spindles and K-complexes C. Is a pattern seen beginning at age 24 weeks conceptional age D. Begins as temporal alpha and spread to the central regions B Is characterized by the appearance of sleep spindles and k-complexes

Which montage would be inappropriate when trying to localize a spike focus when a patient is asleep? A. Circumferential ( Hatband) B. Transverse C. Cz reference D. Ipsilateral reference Cz reference is not a good choice when the patient is asleep because sleep spindles, k- complexes, vertex waves obscure the record because Cz is in every channel.

This pattern is seen as sharp waves in the posterior head regions when the patient is visually scanning an object. A. MU B. POST C. Lambda D. Sleep Spindles C. Lambda

If the right parasagital measurement from Fp2 to O2 measures 24cm, what is the distance from Fp2 to P4? A. 6 cm B. 9 cm C. 12 cm D. 18 cm D. 18 cm

• _______________ is recorded as uv/mm and is defined as the amount of voltage it take to produce an amplitude of 1mm. A. Frequency B. Voltage

C. Sensitivity D. Duration C. Sensitivity

Which of the filling is normal responses to photic stimulation? A. Photo-convulsive response B. Photo-paroxysmal response C. Photo-myogenic response D. Photic Driving response D. Photic Driving response

What separates the sensory and motor strips of the brain? A. Precentral sulcus B. Central sulcus C. Superior temporal sulcus D. Inferior frontal sulcus B. Central sulcus

_____________is the misrepresentation of signals as the result of low sampling rate. The under sampling causes faster frequencies to appear incorrectly as slow frequencies in the recording? A. Sampling skew B. Sampling rate C. Aliasing D. Dwell time C. Aliasing

Which filter would most attenuate focal delta activity? A. LF 5Hz B. LF .3 Hz C. HF 70 Hz D. HF 15 Hz A. LF 5 Hz

Differential amplifiers A. Take the information form 2 electrode inputs, amplify their differences and the

output the information to the screen B. Take information from 2 derivations and output the combination of the 2 signals C. If perfectly matched the signal having the same phase, polarity and amplitude will result in 100% amplification of the signals D. Are only used in analog EEG recording A Take the information form 2 electrode inputs, amplify their difference and the output the information to the screen.

A 10 Hz wave has a duration of A. 100 ms B. 200 ms C.400 ms D. 1000ms A. 100 ms

According to the ACNS guideline for routine EEG recording, electrode impedance should be A. Less then 5.000 ohms B. Greater then 100 ohms C. Within 2.000 ohms of other scalp electrodes D. All of the above are correct D. All of the. Above are correct

Which LF would best demonstrate focal delta activity appearing in the left frontal- temporal region? A. 5 Hz B. 3 Hz C. 1 Hz D. .3 Hz D. .3 Hz. Out of all these choices the .3Hz filter will allow the most slow wave through.

Which normal pattern is seen in children associated with sleep onset? A. HV buildup B. Hypnagogic Hypersynchrony

C. Trace' Alternant D. Quiet sleep B Hypnagogic Hypersynchrony Normal variant of drowsiness is children aged 3 months to 13 years. If consists of paroxysmal bursts ( 3 - 5) of high- voltage ( as high as 350mV) rhythmic wavers.m

If the duration of a wave is .2 sec the frequency would be? A. 1 Hz B. 2 Hz C. 5 Hz D. 10 Hz C. 5 Hz

Which is the least sensitive recording sensitivity? A. 70 uv/mm B. 50 uv/mm C. 10 uv/mm D. 1 uv/mm C. A. 70 uv/mm

According the ACNS quidelines, inter electrode impedance for electrocerebral silence should be below A. 100 ohms B. 1.000 ohms C. 10.000 ohms D. 20.000 ohms C. 10.000 ohms Thought the quidelines use less then 10.000 ohms most use less then 5.000 ohms.

If the frequency of a wave is 1/2 Hz the duration would be A. 100 ms B. 1.000 ms C. 2.000 ms D. 4.000 ms C. 2.000 ms

A rapidly developing focal neurological deficit resulting from ischemia but persisting less than 24 hours is known as A. Lacunar stroke B. Thromboembolic stroke C. Hemorrhagic stroke D. Transient ischemic attack D. TIA transient ischemic attack

Which filter would best attenuate generalized muscle activity? A. LF 1.6 Hz B. LF .1 Hz C. HF 70 Hz D. HF 30 Hz D. HF 30 Hz

Where are the electrodes T1 and T2 placed? A. 1/3 the distance from the preauricular point to the outer can thus and 1 cm down B. 1/3 the distance from the preauricular point to the outer can thus and 1 cm up C. 1/2 the distance from T3 to the outer canthus and down 2 cm D. 1/2 the distance from the outer canthus to the preauricular point and 1 cm up B. 1/3 the distance from the preauricular point to the outer can thus and 1 cm up

Eye movements are typically seen in which electrodes? A. Frontal B. Occipital C. Temporal D. Parietal A. Frontal

Which montage would be most advantageous when recording a focus in the O electrode? A. Reference B. Anterior- posterior Bipolar ( Double Banana) C. Circumferential (linked occipital electrodes) D. Average reference C. Circumferential (linked occipital electrodes)

If your patient has skull defects that limit your ability to place your EEG recording electrodes in accordance with the international 10-20 system of electrodes placement, what must you do on your record? A. Diagram the deformity on separate paper and attach it to the record B. Notate where the head bandages are located C. END technologist must describe skull defects and sketch them diagrammatically D. Do nothing and submit recording C. END technologist must describe skull defects and sketch them diagrammatically

If input I is relatively more positive than input 2 the pen will A. Deflect up B. Deflect down C. Will remain flat D. Will deflect up and down at the same time B. Deflect down

Which High Pass Filter would attenuate a .5Hz Delta wave? A. LF .1 Hz B. LF 5 Hz C. HF 35 Hz D. HF 70 Hz B. LF 5 Hz

Which artery supplies blood to the lateral frontal lobe, the lateral temporal lobe, and the lateral parietal lobe? A. Basilar B. Anterior cerebral Artery C. Posterior cerebral Artery D. Middle cerebral artery D. Middle cerebral artery

________is calculated by multiplying the sensitivity by the amplitude of the wave A. Duration B. Frequency

C. Voltage D. Amplitude C. Voltage

While recording an EEG on a patient with recent stroke you will see subtle slowing in the right posterior temporal regions. You are recording at standard recording settings. Which instrument changes would best demonstrate this activity? A. Change LF to .53 Hz and display epoch to 5 sec/page B. Change LF to .3 Hz and display epoch to 20 sec/page C. Change HF to 35 Hz and sensitivity to 5 uv/mm D. Change HF to 15 Hz and sensitivity to 10 uv/mm B. Change LF to .3 Hz and display epoch to 20 sec/page

Activity that occurs throughout the entire brain is best described as A. Continuous B. Periodic C. Lateralized D. Generalized D. Generalized

Consisting of two or more waves, not necessarily the same frequency, with a distinct pattern or shape which is different from the background. A. Triphasic B. Complex C. Transient D. Sharp B. Complex

Which "Low Pass" filter would least attenuate muscle activity? A. HF 15 Hz B. HF 35 Hz C. LF 1Hz D. LF .3 Hz B. HF 35 Hz

Tissue destruction due to a lock of blood supply is know as___ A. Dysarthria B. Ischemia C. Infarction D. Hemiplegia C. Infarction