Audiology Exam

What is Immittance?

• A.

  Designed to quantify the impedance of the conductive mechanism of the ear by bouncing a probe tone off the tympanic membrane and measuring the proportion of reflected sound.

• B.

  Also called acoustic reflex

• C.

  Allows us to take an objective measure of what is going on behind the eardrum.

What is admittance?

• A.

  Lowest (maximal compliance)

• B.

  Ease of flow of energy into the ear.

• C.

  Also known as test battery

Normal Middle Ear Pressure is 0.2 to 2.0 

• A.

  True

• B.

  False

Ears can be classifed into what three basic groups 

• A.

  A, B, C

• B.

  C, D, S

• C.

  A, C, E

What is the graphic representation of the relationship of external auditory canal air pressure to impedance?

What two things are known as vector quantities?

Pressure in the External Auditory Canal is varied from what to what daPa

• A.

  - 200 to + 250 daPa

• B.

  - 200 to + 200 daPa

• C.

  -150 to + 150 daPa

Type A(D) is associated with what problems of the ear?

• A.

  Sensorineural Hearing Loss, Disarticulation of the ossicles, flaccid tympanic membrane

• B.

  Tympanosclerosis, Otosclerosis

• C.

  Fluid, Perforation

Acoustic Reflex is the highest possible intensity needed to elicit a middle ear muscle contraction.

• A.

  True

• B.

  False