Lec 6. HF tymp

Question 1

Admittance is measured in which acoustic unit?

a. ohms
b. daPa
c. uv
d. mhos

Answer 1

d. mhos

Question 2

For a compliment spring, if we wish the system to be moved more slowly than its resonant frequency which is the main controlling factor?

a. The spring itself so it is stiffness controlled
b. the mass of the spring system so it is mass controlled
c. the curvature of the spring
d. the air surrounding the spring

Answer 2

a. The spring itself so it is stiffness controlled

Question 3

Which of the following statements about changes in the neonatal ear canal over time is false?

a. the bony portion of the ear diminishes
b. there is a change in bone density
c. the tympanic ring fuses
d. there is a change in the orientation of the tympanic membrane

Answer 3

d. there is a change in the orientation of the tympanic membrane

Question 4

The average adult middle ear resonance is at what frequency?

a. 220Hz
b. 900Hz
c. 7.2kHz
d. 4000Hz

Answer 4

b. 900Hz

Question 5

In order to speed up the tympanic procedure on neonates what is a suggested change to the normal tympanometry procedure ?

a. Change of sweep direction from +200 to 400dapa
b. Use only a screening protocol
c. Change to a faster sweep rate
d. Only sweep from -100 to +100daPa

Answer 5

c. Change to a faster sweep rate