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Infant ABR: Click vs CE-Chirp

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1.  The CE-Chirp is a: Low-frequency leading stimulus High-frequency leading stimulus Rising frequency stimulus A and C None of the above

2.  The Click stimulus is a: Transient, broad acoustic spectrum stimuli Used to assess neural hearing loss Used to activate all neural units along the basilar membrane simultaneously A & B None of the above

3.  The CE-Chirp and Click are essentially identical with: Frequency Spectrum Duration Amplitude Spectrum A & C

4.  ABR Wave V latencies to air conducted CE-Chirps are: Significantly shorter at low intensities Significantly longer at low intensities Significantly shorter at high intensities Significantly longer at high intensities

5.  ABR Wave V latencies to bone conducted CEChirps are: Significantly shorter at low intensities Significantly longer at low intensities Significantly shorter at high intensities Significantly longer at high intensities

6.  ABR Wave V amplitudes to air conducted CE-Chirps are: Significantly lower than Clicks at 30, 45 and 60 dB nHL No different from Click stimulus at 30, 45 and 60 dB nHL Significantly greater than Clicks at 30, 45 and 60 dB nHL There is no impact to amplitude.

7.  ABR Wave V amplitudes to bone conducted CE-Chirps are: Significantly lower than Clicks at 30, 45 and 60 dB nHL No different from Click stimulus at 30, 45 and 60 dB nHL Significantly greater than Clicks at 30, 45 and 60 dB nHL There is no impact to amplitude.

8.  ABRs to air conducted CE-Chirps evoke ABR responses in newborn infants in 100% of those tested with how many sweeps: 116 232 464 928 1856

9.  When comparing the impact of rate (8.7; 27.7; 57.7; 77.7) on latencies with air conduction CE-Chirp, the following applies: Significantly earlier than Clicks at 8.7 and 27.7 No different from Click stimulus at 8.7, 27.7, 57.7 and 77.7 Significantly later than clicks at 57.7 and 77.7. With increasing rate, there are no differences between CE-Chirp and Click.

10.  When comparing the impact of rate (8.7; 27.7; 57.7; 77.7) on amplitude with air conduction CE-Chirp, the following applies: Amplitude is significantly greater than Clicks at 8.7, 27.7, 57.7 and 77.7 Amplitude is no different from Click stimulus at 8.7, 27.7, 57.7 and 77.7 Click Amplitude is significantly greater at 57.7 and 77.7. Click Amplitude is significantly greater at 8.7 and 27.7