2024 ABRET Practice Exam A++ Exam with All New Qs & As - Guaranteed Pass!
- The EEG amplifier is designed so that when input 1 is more negative than input
2, the deflection will be
Answer: Upward
- Common Mode Rejection is
Answer: The characteristic of an amplifier that rejects external interference
- Most attenuated by a low frequency filter of 1 Hz
Answer: 0.1 Hz
- Time constant is defined as the time required
Answer: For the deflection to fall (decay) to 67% of the peak deflection
- An EEG record has three per second 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 sensitivity of 10uV/mm, what would the deflection of the spike and wave be
Answer: Spike 10mm, wave 6mm
- HFF setting 35hz would attenuate 50 Hz muscle activity by approximately what
percentage
Answer: 40%
- According to ACNS guidelines, recording clinical EEG on Digital Media
requires monitors to have
Answer: Between 25 and 35mm/second horizontal scaling and min of 100 data
points/second to accurately display EEG on monitor screen
- In a record with 10Hz alpha activity, when the display epoch is changed form 10
seconds per display screen to 20 seconds per display screen, the frequency of the activity will be
Answer: 10Hz
- Guidelines for recording digital EEG are written by
Answer: The American Clinical Neruophysiology Society (ACNS)
- The term RAM means
Answer: Temporary memory storage that is critical to rapid computer operations
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