Principles of Audiology Exam 3

Question 1

___________ is the opposition to the flow of energy.

Answer 1

Impedance

Question 2

The ___________ determine(s) stiffness of the middle ear.

Answer 2

Tympanic Membrane

Question 3

The __________ determine(s) mass of the middle ear.

Answer 3

Ossicles

Question 4

We present words for word recognition at _________

Answer 4

30 db SL

Question 5

SL stands for _____________

Answer 5

sensation level

Question 6

The 30 db SL for a patient with 15 db HL is ____________

Answer 6

45 db HL

Question 7

SRT stands for _______________

Answer 7

speech reception threshold

Question 8

It is called _________ when a patient performs worse on word recognition at 85 db HL than 30 db HL

Answer 8

rollover

Question 9

___________ is the ease with which sound flows through the system

Answer 9

admittance

Question 10

an ear canal volume of 1.33 cc indicates ___________

Answer 10

no perforation and a normal ear canal size

Question 11

You expect a ______________ when there is fluid in the middle ear.

Answer 11

Type B tympanogram

Question 12

When the tympanic membrane is hypermobile, it would be a type _______ tympanogram.

Answer 12

Ad

Question 13

______________ can cause a type As tympanogram

Answer 13

Otosclerosis

Question 14

Negative pressure in the middle ear causes a type _______ tympanogram

Answer 14

C

Question 15

Normative values for adults

Answer 15

0.5 - 2 cc

Question 16

What measures the mobility of the tympanic membrane, air pressure within the middle ear cavity, and presence of acoustic reflex?

Answer 16

Acoustic Immitance

Question 17

Impedance consists of:

Answer 17

resistance and reactance

Question 18

resistance is

Answer 18

the opposition to energy flow - frictional component

Question 19

reactance is

Answer 19

the opposition to energy flow - storage addition

Question 20

the middle ear is a _______ dominated system

Answer 20

stiffness

Question 21

stiffness and mass reactance are ________ related and dependent on frequency.

Answer 21

inversely

Question 22

In reactance, as frequency _______ the total value of the mass reactance factor also increases

Answer 22

increases

Question 23

In reactance, as frequency increases, stiffness ____________.

Answer 23

decreases

Question 24

what is static acoustic compliance/admittance

Answer 24

mobility of the tympanic membrane in response toa given value of air pressure in the external ear canal

Question 25

What is ear canal volume?

Answer 25

reported by a tympanometer but not shown on the tympanogram graph. For adults, the normal range is typically .5 - 2 cc and for kids, the normal range is .5 - 1.55 cc.

Question 26

Hypermobility?

Answer 26

If the tympanogram peak is at 0 daPa but is extremely broad and has a very high static admittance, it suggests a very mobile system. Called type Ad tympanogram

Question 27

Admittance is represented by the letter

Answer 27

Y

Question 28

Impendence is represented by the letter

Answer 28

Z

Question 29

acoustic reflex:

Answer 29

examines the presence of retrocochlear and facial nerve pathology by using the reflexive contraction of the stapedius muscle in the middle ear in response to loud sound.

Question 30

Probe tone of 226 Hz is used for acoustic reflex

Answer 30

true

Question 31

For a normal acoustic reflex, the pure tone detection threshold must be better than about ______ at that test frequency.

Answer 31

50 db HL

Question 32

Atypical reflex can include the absence of a reflex and an _______ reflex.

Answer 32

elevated

Question 33

ipsilateral is

Answer 33

uncrossed

Question 34

contralateral is

Answer 34

crossed

Question 35

HINT is a ______ hearing test

Answer 35

binaural