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ABRET Board Exam (100 OUT OF 100) Questions and
Answers (Latest Update) GRADED A
The basic unit for measuring current flow is A. atomic weight B. Coulomb C. Volt D. Ampere D. Ampere The basic unit of resistance A. Ohm B. Coulomb C. Ampere D. Volt A. Ohm Which of the following is not a valid expression of Ohm's law? A. R=EI or (R=VI) B. E=IR or (V=IR) C. I= E/R or (I=V/R) D. R= E/I or (R= V/I) A. R=EI or (R=VI) Which of the following is not a unit for measuring alternating frequencies
A. Cycles per second B. Volts C. Hertz D. Kilocycles B. Volts Which of the following describes the action of a capacitor? A. opposes changes in current flow B. Converts alternating current to direct current C. Creates a direct current resistance D. Stores energy D. Stores energy A circuit that allows some frequencies to pass through it, while others are blocked is a... A. Resistor B. Transistor C. Filter D. Reactor C. Filter A combination of electronic components designed to increase the power, voltage, or current of a signal A. Amplifier B. Line filter C. Master gain control D. Sensitivity A. Amplifier
C. 10.0 Hz D. 0.1 Hz D. 0.1 Hz Time constant is defined as the time required... A. for the deflection to fall (decay) to 47% of the peak deflection B. for the deflection to fall (decay) 57% of the peak deflection C. for the deflection to fall (decay) 67% of the peak deflection D. for the deflection to fall (decay) to 67% of the peak deflection D. for the deflection to fall (decay) to 67% of the peak deflection An EEG record has 3/sec spike & wave discharges. Both the spike and the slow wave have voltages of 100uV. If this discharge is recorded with a LFF of 5Hz and a sensitivity of 10uV/mm, what would be the deflection of the spike and the wave? a. spike 10mm & wave 6mm b. spike 6mm & wave 10mm c. spike 10mm & wave 10mm d. spike 6mm & wave 6mm a. spike 10mm & wave 6mm A high frequency setting of 35 Hz would attenuate 50 Hz muscle activity by approximately what percentage A. 10% B. 20% C. 40% D. 100% C. 40%
The filters creating a very narrow band pass that should rarely be used clinically are A. LF 5.0 Hz and HF 70 Hz B. LF 5.0 Hz and HF 15 Hz C. LF 0.1 Hz and HF 70 Hz D. LF 0.1 Hz and HF 15 Hz B. LF 5.0 Hz and HF 15 Hz During the recording of cerebral activity, the calibration input voltage is changed from 50 uV to 100 uV. What will be the result? A. No effect on the activity being recorded B. A two fold increase in amplitude C. A one half reduction of amplitude D. Clipping of the waveform A. No effect on the activity being recorded What input voltage is necessary to give a calibration deflection between 5 and 10mm if the sensitivity is 30uV/mm? a. 10uV b. 50uV c. 100uV d. 200uV D. 200 uV The term RAM means
A patient can become the pathway for least resistance and therefore electrically susceptible to shock when A. The recording instrument is turned on B. The electrode test is utilized C. Depth electrodes are used D. The patient has an indwelling heart catheter D. The patient has an indwelling heart catheter Eye leads placed at the outer canthus of each eye will record: a. all eye movements b. horizontal & vertical eye movements c. only vertical eye movements d. mainly horizontal eye movements d. mainly horizontal eye movements Which of the following is not a physiological artifact A. Perspiration B. Glossokinetic Response C. 60 Hz interference D. Eye movement C. 60 Hz interference Which of the following is not a source of 60 Hz interference A. Other equipment in the room
B. Faulty ground connection C. intravenous drip D. defects in the power supply C. intravenous drip The tracts connecting the right and left hemispheres are called the A. Corpus Callosum B. Internal Capsule C. Intrahemispheric association fibers D. Basal Ganglia A. Corpus Callosum The central sulcus (fissure of Rolando) demarcates the A. Left and Right hemispheres B. Frontal and Parietal Lobes C. Frontal and Temporal Lobes D. Parietal and Occipital Lobes B. Frontal and Parietal Lobes The homunculus is a A. representation of the motor and sensory cortex of the brain B. gyrus found in the temporal lobe C. lateral loss of vision in one eye D. type of tumor A. representation of the motor and sensory cortex of the brain
D. Opening between the third ventricle and fourth ventricle of the brain A. Opening between the lateral ventricle and third ventricle of the brain Which of the following conditions is characterized by rigidity, tremors, and festination? A. Huntington's Chorea B. Alzheimers Disease C. Friedreich's Ataxia D. Parkinson's Disease D. Parkinson's Disease A patient complaining of right hemiplegia will have A. Difficulty moving all extremities B. Non purposeful movements of the right side of the body C. No vision in the right eye D. Difficulty moving the right side of their body D. Difficulty moving the right side of their body A patient with sensory aphasia will have difficulty A. Comprehending the meaning of words or phrases B. Forming words normally C. Reading and writing D. Smelling and tasting A. Comprehending the meaning of words or phrases Wada testing is done to determine:
a. balance b. hearing c. vision d. speech dominance d. speech dominance Fasciculation refers to: a. abnormal sensation b. quick repetitive speech c. involuntary twitching of muscles fibers d. lacking fine motor skills c. involuntary twitching of muscles fibers 6 - 7 Hz theta activity is typically seen in a normal adult in which of the following? A. In the occipital regions B. In the centro-temporal regions during photic stimulation C. At the onset of drowsy D. In low voltage, paroxysmal bursts over the frontal regions C. At the onset of drowsy Symmetry of sleep spindles, when present, is important in the evaluation of: a. the physiological maturation of an infant b. seizures which occur during sleep c. REM sleep d. Spindle coma a. the physiological maturation of an infant
C. Left hemispheric PLEDs D. Generalized polyspikes B. Attenuation of background in the left hemisphere A diagnosis of an astrocytoma in the left frontal lobe is most likely to produce which of the following EEG findings: a. generalized polymorphic delta activity b. focal delta activity in the right hemisphere c. left frontal focal spike activity d. left frontal burst suppression c. left frontal focal spike activity This type of EEG activity most often appears in association with rapidly growing tumors such as glioblastoma multiform and cerebral metastatic lesions A. polymorphic delta activity B. Beta asymmetry C. Spike and wave D. Epileptiform discharges A. polymorphic delta activity Which of the following EEG patterns carries a poor prognosis and is often the result of a respiratory or cardiac arrest A. nonreactive continuous alpha B. hypsarrhythmia C. FIRDA D. Continuous Spindles A. nonreactive continuous alpha
Which of the following is related to an alpha coma pattern? A. Reactivity to external stimuli B. Usually indicates a food prognosis C. Is only present when the patient is alert and oriented D. An atypical distribution of alpha D. An atypical distribution of alpha The triad of cataplexy, sleep paralysis, and hypnagogic hallucinations are seen in A. Apoplexy B. Sleep Apnea C. Narcolepsy D. Temporal lobe epilepsy C. Narcolepsy Benzodiazepines at thearaputic levels can cause A. Marked diffuse slowing B. Frontal central beta C. Epileptiform activity D. Focal frontal slowing B. Frontal central beta The drug Dilantin will have little effect on the EEG at therapeutic levels however when approaching toxic levels the drug can cause what EEG change? A. An increase in beta
Aliasing is caused by: a. improper electrode placement b. 60Hz interference c. insufficient amplifier gain d. insufficient sampling rate d. insufficient sampling rate Horizontal resolution refers to the: a. time constant divided by equivalent paper speed aka epoch, analysis time, time base b. amount of time required to return to the horizontal baseline c. amount of space available for storage to disk d. number of data points that are stored to record a signal in each second across time d. number of data points that are stored to record a signal in each second across time Cancellation occurs when _______: a. the two electrodes in a channel are both inactive b. input 1 is higher in voltage than input 2 c. the voltage of input 1 is the same as the voltage in input 2 d. the reference electrode is truly inactive c. the voltage of input 1 is the same as the voltage in input 2 In a referential montage with Cz as the reference what is the most valuable localizing feature? A. Phase reversal B. Highest voltage discharge
C. In phase cancellation D. Common mode rejection B. Highest voltage discharge In an EEG instrument what component transforms alternating current into direct current? A. The input cable B. The galvanometers C. The A to D converter D. The power supply D. The power supply What kind of amplifiers are used to record biological signals? A. bifurcated B. referential C. bipolar D. differential D. differential We have an expert-written solution to this problem! An EEG instrument's common mode rejection ratio should be ______: a. very high b. very low c. as close to "0" as possible d. equal to the input impedance a. very high
d. the amplifier Lismore responsive to fast frequencies a. more slow frequencies recorded A short time constant results in: a. increase in fast frequencies b. decrease in fast frequencies c. increase in slow activity d. decrease in slow activity d. decrease in slow activity Rapid, involuntary, jerky arrhythmic movements of muscle groups, that can be generalized, symmetric, asymmetric or unilateral describes what disorder? A. Myelopathy B. Guillain-Barre Syndrome C. Chorea D. Leukoencephalopathy C. Chorea An autosomal recessive disorder of copper metabolism also called hepatolenticular degeneration, with symptoms of behavioral changes, ataxia, dysarthria and abnormal movements as well as hepatic dysfunction A. West Syndrome B. Wilsons Disease C. Addisons Disease D. Vasculitis B. Wilsons Disease
A biphasic horizontal, vertical, diagonal or rotational ocular oscillation in which at least one phase is slow A. homonymous hemianopsia B. Nystagmus C. Opthalmoplegia D. Ocular Myopathy B. Nystagmus Spinocerebellar degeneration A. Fredricks Ataxia B. Pagets Disease C. Wilsons Disease D. West Syndrome A. Fredricks Ataxia Syringomyelia A. weakness associated with receiving an injection B. Sacral radiculopathy C. Abnormal cavity or cyst in the spinal cord D. Horner's Syndrome C. Abnormal cavity or cyst in the spinal cord Sign of intercranial pressure A. Increased mean arterial pressure B. Homonymous hemianopsia C. Papilledema
