Exam Preview for 42091: Pediatric Evoked Potentials: Principles and

Pediatric Evoked Potentials: Principles and Clinical Practice

Please note: exam questions are subject to change.

1. Which of the following is a primary clinical indication for pediatric ABR testing? Measuring speech perception in noise in school-age children Assessing auditory pathway integrity in infants who are non-verbal or difficult to test behaviorally Evaluating vestibular function in neonates Measuring middle ear pressure in sedated infants
2. Which ABR finding is most consistent with conductive hearing loss in a pediatric patient? Absent ABR with preserved cochlear microphonic Prolonged interpeak latencies with normal Wave I Elevated air-conduction thresholds, normal bone-conduction thresholds, and normal interpeak latencies Broad Wave V morphology with elevated air- and bone-conduction thresholds
3. Why must ABR interpretation in infants be adjusted according to developmental age? Because cochlear function is immature until 2 years of age Because auditory evoked potentials are absent before 6 months of age Because myelination and auditory pathway maturation affect absolute and interpeak latencies during infancy Because Wave I reaches adult values later than Wave V
4. Which electrophysiologic profile is most characteristic of auditory neuropathy spectrum disorder (ANSD)? Delayed Wave V with absent otoacoustic emissions Elevated air- and bone-conduction thresholds with normal tympanometry Present otoacoustic emissions and/or cochlear microphonic with absent or severely abnormal ABR Normal ABR thresholds with absent acoustic reflexes only
5. What is one major clinical advantage of chirp stimuli compared with click stimuli in pediatric ABR testing? They eliminate the need for waveform replication They are less affected by maturation in infants They produce a larger Wave V response, facilitating identification near threshold and reducing acquisition time They allow direct assessment of cortical auditory responses during sleep