ENT

Question 1

What is the dB threshold for mild hearing loss?

Answer 1

25-39

Question 2

What is the dB threshold for moderate hearing loss?

Answer 2

40-69

Question 3

What is the dB threshold for severe hearing loss?

Answer 3

70-94

Question 3

What is the dB threshold for profound hearing loss?

Answer 3

> 95

Question 4

What is the very simplified order of structures involved in normal hearing?

Answer 4

External auditory canal
Eardrum
Malleus, incus and stapes
Cochlea
Hair cells on basilar membrane
Auditory nerve
Brain

Question 5

What is a normal Rinne’s test (positive)?

Answer 5

Air conduction > Bone conduction

Question 6

What is a negative Rinne’s test?

Answer 6

Bone conduction > Air conduction

Question 7

What is a normal Webber’s test?

Answer 7

Sound localised to both ears equally

Question 8

What would the expected Rinne’s and Webber’s results be in a left sided SN hearing loss?

Answer 8

Rinne’s +ve
Webber’s localised to right side

Question 9

What would the expected Rinne’s and Webber’s results be in a right sided SN hearing loss?

Answer 9

Rinne’s +ve
Webber’s localised to left side

Question 10

What would the expected Rinne’s and Webber’s results be in a left sided conductive hearing loss?

Answer 10

Rinne’s -ve
Webber’s localises to left side

Question 11

What would the expected Rinne’s and Webber’s results be in a right sided conductive hearing loss?

Answer 11

Rinne’s -ve
Webber’s localises to right side

Question 12

Emryologically failure of fusion of what structures causes a cleft lip/palate?

Answer 12

Medial nasal and maxillary processes

Question 13

In cleft, abnormal insertion point of which muscle leads to poor ventillation of the middle ear and causes AOM with effusion?

Answer 13

Tensor veli palatini

Question 14

Which syndrome is typically associated with a U-chaped cleft?

Answer 14

Pierre-Robin sequence

Question 15

What is the classical triad of a submucosal cleft palate?

Answer 15

Bifid uvula
Absent or notched posterior nasal spine
Translucent or blue area in midline of soft palate

Question 16

When is primary lip closure usually performed for cleft?

Answer 16

3 months

Question 17

When is palate closure usually performed in cleft?

Answer 17

6-12 months