BAEP/VEP CNIM Practice Questions –
Brainstem Auditory and Visual Evoked
Potentials Certification Exam Practice
How does loss of blood supply affect BAEP waves? - ANSWER ✔ Loss of all waves
Which BAEP polarity causes Wave I to have a shorter latency and larger amplitude? - ANSWER ✔
Rarefaction
How often should your auditory stimulus be calibrated? - ANSWER ✔ Click intensity should be calibrated
every 6 months in dB pe SPL
An increase in stimulus intensity will decrease or increase BAEP peak latencies? - ANSWER ✔ A decrease
in stimulus intensity will increase peak latencies
What are the recommended filter settings for BAEP peak latencies? - ANSWER ✔ 10-30Hz to 2,500-3,000
Hz (-3 dB) w/ a filter rolloff not to exceed 12 dB octave for low frequency and 24 dB/octave for high
frequency
Decreasing low pass filter (high frequency filter) from 3000 to 1500 can increase or decrease peak
latency? - ANSWER ✔ Increase
What is the recommended # of trials for BAEPs? - ANSWER ✔ 1,000-4,000
What is the conventional BAEP montage? - ANSWER ✔ Cz-Ai
If you use an Az-Cz montage, how does that affect the BAEP? - ANSWER ✔ May separate Wave IV and V
If Wave I of the BAEP is hard to identify, what other modality could be done to identify Wave I? -
ANSWER ✔ ECochG
What polarity will cancel out the Cochlear Microphonic (CM) of the ECochG? - ANSWER ✔ Alternating
Brainstem Auditory and Visual Evoked
Potentials Certification Exam Practice
How does loss of blood supply affect BAEP waves? - ANSWER ✔ Loss of all waves
Which BAEP polarity causes Wave I to have a shorter latency and larger amplitude? - ANSWER ✔
Rarefaction
How often should your auditory stimulus be calibrated? - ANSWER ✔ Click intensity should be calibrated
every 6 months in dB pe SPL
An increase in stimulus intensity will decrease or increase BAEP peak latencies? - ANSWER ✔ A decrease
in stimulus intensity will increase peak latencies
What are the recommended filter settings for BAEP peak latencies? - ANSWER ✔ 10-30Hz to 2,500-3,000
Hz (-3 dB) w/ a filter rolloff not to exceed 12 dB octave for low frequency and 24 dB/octave for high
frequency
Decreasing low pass filter (high frequency filter) from 3000 to 1500 can increase or decrease peak
latency? - ANSWER ✔ Increase
What is the recommended # of trials for BAEPs? - ANSWER ✔ 1,000-4,000
What is the conventional BAEP montage? - ANSWER ✔ Cz-Ai
If you use an Az-Cz montage, how does that affect the BAEP? - ANSWER ✔ May separate Wave IV and V
If Wave I of the BAEP is hard to identify, what other modality could be done to identify Wave I? -
ANSWER ✔ ECochG
What polarity will cancel out the Cochlear Microphonic (CM) of the ECochG? - ANSWER ✔ Alternating