Download DNB 2015 Dec ENT P I Question Paper

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FINAL EXAM NATIONAL BOARD OF EXAMINATIONS
DECEMBER 2015
OTORHINOLARYNGOLOGY
PAPER - I
ENT/D/15/28/1

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Time : 3 hours Max. Marks : 100

Important instructions:

1. Attempt all questions in order.
2. Each question carries 10 marks.
3. Read the question carefully and answer to the point neatly and legibly.

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4. Do not leave any blank pages between two answers.
5. Indicate the question number correctly for the answer in the margin space.
6. Answer all the parts of a single question together.
7. Start the answer to a question on a fresh page or leave adequate space between two answers.
8. Draw table/diagrams/flowcharts wherever appropriate.

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Write short notes on:

1. a) Diagramatic representation & explanation of Impedance (3 +3)
   Transformer action of middle ear.
   b) Role of middle ear muscles on transmission. 4
2. a) Principles of Brainstem Evoked Response Audiometry 5
   

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   (BERA).
   b) Clinical applications of BERA. 5
3. a) Define osteoradionecrosis of temporal bone. 2
   b) Its aetiopathogenesis and management. 5+3
4. a) Define Keratosis Obturans and Primary Auditory Canal 1+1
   

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   Cholesteatoma.
   b) Write differences between these two in relation to 3+3+2
   etiopathology, clinical features and treatment.
5. a) Enumerate causes of conductive hearing loss with intact 4
   ear drum.
   

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   b) Mention important differentiating points amongst them. 6
6. a) Enumerate complications of Stapedectomy. 2
   b) What are their diagnostic points? 4
   c) How are they managed? 4
7. a) Define otitic barotrauma. 2
   

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   b) What is the physiological consequence of compression & 3+3
   decompression?
   c) Management of otitic barotrauma. 2
8. a) Define petrositis and give its etiology. 1+1
   b) Mention classification and clinical features. 2+3
   

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   c) Principles of its management. 3
9. a) Classify group wise Ototoxic drugs. 6
   b) Mention their mechanism of action. 4
10. a) Define nystagmus. 2
    b) What are the different degrees of nystagmus? 4
    

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    c) How slow and fast components of nystagmus orginate? 4

P.T.O.

POSSESSION / USE OF CELL PHONES IS NOT PERMITTED INSIDE THE HALL.

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POSSESSION / USE OF CELL PHONES IS NOT PERMITTED INSIDE THE HALL.