2024 ABRET Practice Exam A++ Exam with All New Qs & As - Guaranteed Pass!

2024 ABRET Practice Exam A++ Exam with All New Qs & As - Guaranteed Pass! 1. The EEG amplifier is designed so that when input 1 is more negative than input 2, the deflection will be Answer: Upward 2. Common Mode Rejection is Answer: The characteristic of an amplifier that rejectsexternal interference 3. Most attenuated by a low frequency filter of 1 Hz Answer: 0.1 Hz 4. Time constant is defined asthe time required Answer: For the deflection to fall (decay)to 67% of the peak deflection 5. An EEG record has three per second spike/wave discharges. Both the spikeand 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 spikeand wave be Answer: Spike 10mm, wave 6mm 6. HFF setting 35hz would attenuate 50 Hz muscle activity by approximately what percentage Answer: 40% 7. According to ACNS guidelines, recording clinical EEG on Digital Media requires monitors to have Answer: Between 25 and 35mm/second horizontal scaling andmin of 100 data points/second to accurately display EEG on monitor screen 8. 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 9. Guidelines for recording digital EEG are written by Answer: The American ClinicalNeruophysiology Society (ACNS) 10. The term RAM means Answer: Temporary memory storage that is critical to rapidcomputer operations