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ABRET-EEG Exam Testbank 2024/2025 (5+ Exams Combined) Question with verified answers Latest Update
Typology: Exams
1 / 155
What is the typical presentation of CJD? - correct answers ✅ataxia, dementia and myoclon Tuberous sclerosis - correct answers ✅tumors or growths in the brain or other o What is the most important to document in the history of your EEG patient?
A childhood disorder characterized by acquired aphasia, multifocal epileptiform abnormalities, and focal or generalized seizures: - correct answers ✅Landau-Kleffner syndrome Reduction of health care associated infections is addressed by - correct answers ✅National Patient Safety Goals Balanced electrode impedences are important to: - correct answers ✅lessen 60 hz. interference FT9 or T1 and FT10 or T2 electrodes record from the - correct answers ✅anterior temporal lobe What type of electricity provides a steady source of current, flowing in one direction only? - correct answers ✅direct current Impedence can best be described as the - correct answers ✅resistance to alternating current
Ictal - correct answers ✅during A Business Associate Agreement is required when - correct answers ✅medical records are shared A lesion of the uncus may result in - correct answers ✅olfactory hallucinations When testing an outpatient with active Tuberculosis, it is necessary for the - correct answers ✅patient to wear a mask According to the ABRET Code of Ethics, a credentialed technologist should report to ABRET if: - correct answers ✅they have been convicted of a felony related to their work in NDT SDS - correct answers ✅Safety Data Sheet Vagal nerve stimulators are used to treat - correct answers ✅seizures and depression
A violation of ABRET/Code of ethics? - correct answers ✅Not striving to keep current in the technology What should be documented in the history - correct answers ✅the patient had dialysis this morning Broca's area lies in the - correct answers ✅posterior part of the inferior frontal gyrus Ictal EEG - correct answers ✅time during the event Most closely related to the measurement of voltage in relation to current and resistance? - correct answers ✅Ohm's law Febrile seizures - correct answers ✅age-related
This occurs with unbalanced electrode impedences of greater than 20kOhms? - correct answers ✅marked increase in 60 hz. activity What is the most effective way of preventing nosocomial infections? - correct answers ✅hand hygiene Homonymous hemianopsia - correct answers ✅loss of the left or right visual field in both eyes Standard of conduct for credentialed technologists? - correct answers ✅ABRET Code of Ethics Used to treat infantile spasms - correct answers ✅ACTH Life threatening current could pass through a patient if - correct answers ✅the machine ground is not intact Focal or unilateral suppression and slowing: - correct answers ✅subdural hematoma
A meningioma is usually - correct answers ✅encapsulated Indication of the presence of blood in the CSF? - correct answers ✅subarachnoid hemorrhage The central aspect of using the minimum amount of protected health information needed to accomplish the intended purpose of the use, disclosure, or request is a part of what Act? - correct answers ✅HIPAA A patient with a right hemiparesis most likely has a lesion of the left - correct answers ✅frontal lobe According to OSHA, when most electroneurodiagnostic equipment be checked for leakage current, ground resistance and electrical safety? - correct answers ✅Semiannually The onset of Sturge-Weber disease is typically during - correct answers ✅Infancy
Scotoma - correct answers ✅area of visual loss ACTH - correct answers ✅Infantile spasms A stat EEG has been ordered on a women who experienced a GTC seizure. She is confused. While the tech. is running a baseline, a man enters claiming to be her husband. If he asks about the record the tech. should? - correct answers ✅ask the man to wait for a physician to speak to him Photic driving is most common in what frequency? - correct answers ✅alpha Photic stimulation should be performed? - correct answers ✅While awake What activity does NOT typically cause attenuation of PDR in a normal adult.
What type of response to PS is characterized by generalized spike and wave discharges continuing after the flash? - correct answers ✅ An asymmetric photic driving response right greater than left is: - correct answers ✅Normal When using photic stimulation the flash rate that commonly activates a seizure is? - correct answers ✅ 9 - 13hz. Atypical Photic response? - correct answers ✅delta driving An EEG obtained during sleep is most valuable in what condition? - correct answers ✅Focal seizures or status during sleep A 7 year old presents with spells of spacing out. What activation procedure is the most important? - correct answers ✅Hyperventilation
During HV, a 9 y/o pt. develops generalized 100-300 microvolts slowing. If within 30 seconds post HV, the record returns to preHV state the reaction would be? - correct answers ✅a normal response to HV Hyperventilation - correct answers ✅Hypocapnia A subharmonic photic driving response is? - correct answers ✅half the frequency of the strobe What is a contraindication of for HV? - correct answers ✅Sickle cell anemia What procedure is a non-standard activation? - correct answers ✅Listening to music PS is most effective in evoking epileptiform abnormalities in patient's with? - correct answers ✅a family history of seizures What other EEG pattern would you expect to see in a pt. with prominent photic driving response? - correct answers ✅LAMBDA
Photic induced epileptiform discharges are most likely associated with - correct answers ✅barbiturate withdrawl What could be the cause for a build up of slowing several minutes after HV has been completed? - correct answers ✅Moya Moya Abnormal presentation to photic stimulation. - correct answers ✅photoparoxysmal What activation procedure should be avoided in a patient with intracranial hemorrhage? - correct answers ✅Hyperventilation Photoparoxysmal response - correct answers ✅EEG response to light with spikes, spike and wave discharges and/or intermittent slow waves An EEG shows eye blink and muscle artifact. What is likely the state of the patient? - correct answers ✅Awake
What is the first thing that should be done when trying to eliminate 60hz. artifact? - correct answers ✅attempting to eliminate the technical issue Sweat artifact is severely obscuring the EEG. What is the first step the technologist should take to eliminate the artifact? - correct answers ✅cool the patient down by removing the patient's blanket and fanning them. Glossokinetic Artifact - correct answers ✅Biological Sweat artifact - correct answers ✅slow deflection Glossokinetic - correct answers ✅tongue movement What is the name of the artifact that appears as a prominent R wave with positivity over the left posterior quadrant of the head and can resemble a spike? - correct answers ✅ECG artifact
Eye movement artifact - correct answers ✅Vertical eye movements are seen over FP1 and FP2 while horizontal eye movements are seen over F and F8. Using the International 10/20 system, if the distance from nasion to inion is 34 cm, What is the distance from Fz to Oz? - correct answers ✅20.4cm Tuberous sclerosis - correct answers ✅genetic What is the typical presentation of CJD? - correct answers ✅progressive dementia, bilateral ridigity, myoclonus, stupor and death Characterized by dementia, myoclonus and biphasic or triphasic repetitive discharges? - correct answers ✅CJD If the distance from the right preauricular to the right outer canthus is measures 9cm, where should electrode T2 be placed? - correct answers ✅3cm out from the preauricular and 1cm up
FT9 or T1 and F10 or T2 record from the - correct answers ✅anterior temporal lobe If the nasion to inion measurement is 40cm, what is the distance between Cz and Pz? - correct answers ✅8cm When a large amount of paste is used to hold down an electrode, the total recording area will be? - correct answers ✅total scalp surface area of the paste The onset of Surge Weber's? - correct answers ✅Infancy Moya Moya disease is associated with: - correct answers ✅decreased blood flow to cerebral tissue When would a normal EEG be expected? - correct answers ✅MS While performing an EEG, C4 is moved 1cm posteriorly. What else should the tech. do? - correct answers ✅Move C3 1cm posteriorly
If a patient has a circumference of 55cm, which of the following interelectrode distances can be calculated? - correct answers ✅O1-O What electrodes gives the least distortion of low frequencies? - correct answers ✅silver-silver chloride Balanced electrode impedance is important to? - correct answers ✅lessen 60 hz interference Balanced impedance allows you to? - correct answers ✅maximize common mode rejection Impedance can be best described as? - correct answers ✅resistance to alternating current Extremely low voltage due to phase cancellation may be caused by? - correct answers ✅salt bridge
What occurs with unbalanced electrode impedance greater than 20km? - correct answers ✅marked increase in 60hz acitivity What measures the opposition to current flow when a known voltage is applied? - correct answers ✅Impedance meter EEG is most useful in - correct answers ✅encephalopathy Impedance is the resistance of a part of a circuit passage of? - correct answers ✅altering current Short interelectrode distance between electrodes will cause what change to the EEG waveform? - correct answers ✅decrease amplitude Broken lead wire during recording - correct answers ✅requires replacement What is activity is prominent in T4? - correct answers ✅electrode pop
What should be your first reaction to 60hz artifact in one electrode? - correct answers ✅check electrode impedence What physiological artifact is in the sample? - correct answers ✅EKG artifact Artifact that is caused by movement of people near the patient? - correct answers ✅electrostatic artifact 60 hz. filter - correct answers ✅notch filter If 60hz. is present in to channels of the EEG, the first step in troubleshooting is? - correct answers ✅check electrode impedance Non-physiologic artifact - correct answers ✅electrode
The EEG activity seen maximally in the frontal leads is? - correct answers ✅Bifrontal myogenic artifact While recording using a bipolar montage, you notice that the channel C4-P is unusually flat compared to the other channels. What is the cause? - correct answers ✅the electrodes are too close together Calculate the duration of the waveform - correct answers ✅150msec. 1 centimeter - correct answers ✅10mm Calculate the voltage of the waveform - correct answers ✅ 20 - 25uv Duration of a sharp wave? - correct answers ✅ 70 - 200msec What is the frequency of the activity in the box? - correct answers ✅Delta Voltage - correct answers ✅V=SD
If theta activity from a drowsy child recorded at 7 uv/mm results in a deflection of 20mm, what is the voltage? - correct answers ✅140uv Bandwidth of routine EEG activity? - correct answers ✅ 1 - 70hz. If the sensitivity is 7uv and the voltage is 20uv. what is the measurement of the deflection? - correct answers ✅2.9mm What is the duration of a 10hz. wave at a display of 15mm/sec? - correct answers ✅100msec. What is the duration of the waveform? - correct answers ✅400msec A 50 microvolt wave at sensitivity 5 microvolts/mm produces a deflection of
What is the voltage of a spike if it measures 15mm peak to peak and the sensitivity value is 10mm/mm? - correct answers ✅ 150 microvolts A 9mm deflection at a setting of 20 microvolts/mm will have an input signal of? - correct answers ✅180 microvolts In an EEG display at 30mm/sec. a high voltage transient with a duration of 2mm would be a - correct answers ✅spike LAMBDA waves - correct answers ✅Visual input Alpha Coma - correct answers ✅ 8 - 13hz activity occurring diffusely, maximum anteriorly Photoparoxysmal responses are characterized by: - correct answers ✅generalized irregular spike and wave discharges or polyspike and wave bursts
Subclinical Rhythmic Electrographic Discharge in Adults (SREDA) most often appears - correct answers ✅suddenly in resting EEG It is common in FIRDA to: - correct answers ✅react to stimulation Diagnostic value? - correct answers ✅asymmetrical frequency What are the most significant finding in this sample? - correct answers ✅Generalized spike and wave What differentiates Lambda and POSTS - correct answers ✅occurs with eyes open BIPLEDS - correct answers ✅hypoxia What would be considered a focal abnormality? - correct answers ✅Unilateral spikes
Describes secondary bilateral synchrony - correct answers ✅reflects rapid generalization from one or multiple sources The red box describes? - correct answers ✅EMG Important in evaluating background frequency? - correct answers ✅wakefulness and age Hypsarrhythmia - correct answers ✅disorganized, continuous high voltage slow waves with interspersed multifocal spike wave During neonatal seizures, the EEG most likely shows - correct answers ✅focal rhythmic activity 25 y/o male w/TBI. What is seen in the sample? - correct answers ✅Artifact What is happening in the first 2 seconds and the last 2 seconds in the sample? - correct answers ✅60hz artifact
An EEG pattern least likely to be associated with clinical symptoms? - correct answers ✅6hz. spike and wave Mu rhythm - correct answers ✅ 8 - 10hz What pattern is eliminated by movement of a limb? - correct answers ✅Mu rhythm Considered abnormal - correct answers ✅spikes What is NOT an ANCS guideline for ECI recording? - correct answers ✅record at a standard 7uv/mm for at least 30 minutes of the recording. What is one of the 10 ACNS guidelines for ECI recording? - correct answers ✅use of double distance montages What medication increases BETA activity? - correct answers ✅Xanax
Eyelid myoclonia with absences, eye closer induced seizures, EEG paroxysms and photosentivity? - correct answers ✅Jeavons Syndrome What is important for the technologist to document in order to aid in interpretation? - correct answers ✅The pt. is awake and alert during the recording The eeg activity in the 2nd epoch? - correct answers ✅Photic driving Laplacian montage - correct answers ✅source reference derivation What do MITTENS, midline rhythmic theta and trace alternans have in common? - correct answers ✅All normal waveforms This wave form is caused by arousals - correct answers ✅K-complex
The amount by which the differential amplifier increases the magnitude of the input signal is the? - correct answers ✅sensitivity Occipital spikes in response to low frequency flashes are commonly seen in what condition? - correct answers ✅Batten's disease The waveforms contain frequencies high as 100 hertz. What is the Nyquist sampling rate? - correct answers ✅>200 samples/second The EEG pattern of a pt. with LGS is mostly to show? - correct answers ✅1.5hz spike and wave discharges During an ECI recording, what is the highest sensitivity that must be included in the recording? - correct answers ✅2uv/mm What is the focus and polarity of the sharply contoured wave in the box? - correct answers ✅Fp1 negative