Exam Preview for 32781: What's New in the Otometrics Bio-logic Line

What's New in the Otometrics Bio-logic Line of Devices?

Please note: exam questions are subject to change.

1. What is spread spectrum? A method used to smooth the response A method used to reduce myogenic noise A method used to reduce electrical interference A method used to enhance wave V amplitude
2. Why is an FM signal used for OAE? To reduce noise levels in the ear canal To eliminate the second source of OAE To increase amplitude of the response To ensure frequency specificity of the response
3. What is the benefit of multichannel (dual frequency) OAE? Increases test time Creates a larger response More impervious to noise Reduces test time
4. What is mixed-frequency ASSR? Changing the stimulation/modulation rate as carrier frequency changes Using a constant carrier frequency as modulation rate changes Using a constant modulation rate as carrier frequency changes Using different modulation rates to enable multiple frequencies to be tested at the same time
5. Why is mixed frequency ASSR used on the Bio-logic NavPRO ONE? Low frequency carriers need high frequency modulation rates to obtain a good response High frequency carriers need low frequency modulation rates to obtain a good response Low frequency carriers need low frequency modulation rates to obtain a good response There is not influence of cochlear mechanics on ASSR responses
6. What is the Scissor paradigm? Keeping a constant intensity difference between L1 and L2 Increasing the difference between L1 and L2 as stimulus level decreases Decreasing the difference between L1 and L2 as stimulus level decreases Having L1=L2 at all stimulus levels
7. Why are pressurized OAEs conducted? To ensure conductive hearing losses are correctly detected To ensure comfort during the test To ensure sensorineural hearing losses are correctly detected To ensure minimum test time
8. What is known about testing both ears at the same time with EPs? ASSR is the only EP that allows for testing both ears at the same time ABR testing of both ears at the same time can only be done for newborn screening Only 2 channel ABR systems can test two ears at the same time Testing both ears at the same time for ABR is possible for all ages
9. What is known about testing both ears at the same time for OAE? Can be completed on all equipment Cannot be done due to contralateral suppression Is valid and reliable as suppression effects are very small Can only be done on adult with mature nervous systems
10. What is weighted averaging? Using artifact reject levels to ensure noise does not get averaged in Using a mean noise calculation for rejecting noise from the response Subtracting every other response to obtain an average noise calculation Giving noisy recordings less influence and giving quiet recording a large influence on the results