49 Visual and hearing tests

Question 1

How do you perform a Weber’s test.

Answer 1

1. Place the butt of the vibrating turning fork in the middle of the subject’s forehead and make sure he hears the tone.
2. Ask the subject whether there is a difference in loudness bewteen two ears
3. Instruct the subject to obstruct the auditory meatus with finger tip and repeat the test.

Question 2

What should be the results of Weber’s test?

Answer 2

Sound is localised to the ear with conduction deafness; but to normal ear in if there is perception deafness.

Normal: both ears can hear equally.

Question 3

What is a positive result in Rinne’s test?

Answer 3

Air conduction > bone conduction = normal/ perception deafness

Question 4

What is a negative result in Rinne’s test?

Answer 4

Bone conduction > air conduction = conduction deafness

Question 5

How is the Rinne’s test conducted?

Answer 5

1. Place the butt of the vibrating tuning fork on the mastoid process of the subject and ascertain whether the tone can be heard.
2. Instruct the subject to signal when the sound can no longer be heard. Immediately place the vibrating ends of the fork in front of the external meatus and ask the subject if he can hear it.
3. Instruct the subject to obstruct the auditory meatus with finger tip and repeat the test on the same ear.