Differential Diagnosis

Question 1

The most recognized early article on ABR and the detection of acoustic neuromas was authored by

Answer 1

Selters and Brackmann

Question 2

Wave III of the ABR waveform is generated by

Answer 2

cochlear nucleus

Question 3

Who was the researcher whose intracranial recordings on humans contributed to our understanding of the ABR generator sites?

Answer 3

Aage Møller

Question 4

One of the advantages of using ABR over MRI is that it is

Answer 4

a physiological index

Question 5

The proper term for an acoustic neuroma is

Answer 5

vestibular schwannoma

Question 6

An acoustic neuroma will commonly reveal which of the following ABR findings?

Answer 6

An extended I–III interval

Question 7

An absent Wave V with a present and normal Wave I and III is usually indicative of:

Answer 7

brainstem involvement

Question 8

The stacked ABR was developed to

Answer 8

better detect small acoustic neuromas

Question 9

Vascular loop syndrome may likely manifest in what kind of ABR abnormality?

Answer 9

a I–III extension

Question 10

Cochlear hearing loss can influence what ABR measures?

Answer 10

• increase in the absolute latency of Wave V
• decrease in the amplitude of Wave I
• decrease in the amplitude of Wave V