45 Matching questions
- Negative Peak Pressure
- High peak admittance
- Obviously atypical things to look for in the Otoscopic Inspection
- Type A
- In tympanometry, the microphone can measure...
- Major Tests of immittance
- Purpose of the Visual Otoscopic Inspection?
- Tympanometry may not be accurate with children younger than...
- when there is negative peak pressure, this means...
- Peak pressure
- Ear Canal Volume
- greatest admittance
- Peak pressure is shown by...
- The Tympanic Membrane vibrates most easily when air pressure is...
the following, what pattern of tympanometry results would you expect to
be associated with a conductive hearing loss related to a tympanic
-Type A with abnormally large ear canal volume
-Type B with normal ear canal volume (not possible)
-Type B with abnormally large ear canal volume
- Low Peak admittance
- normal peak admittance
- Type C Tymp. reflects...
- A type B tymp with Normal physical volume often reflects...
- Describing ear canal abnormalities for results of the Otoscopic Inspection
- A type B tymp with a physical volume that is too small means...
- To interpret Type B tympanogram...
- A too small Ear canal volume usually means...
- Acoustic Reflex Thresholds
- Peak Admittance
- Type C Tympanogram
- If a Type B tymp. has Normal physical volume...
- Normal Ear Canal Volume
- A too large ear canal volume usually means...
- Tympanometry- 3 parts
- Normal Peak Pressure
- when is the visual otoscopic inspection performed?
- In a normal middle ear, the greatest admittance is at ____, and declines as the air pressure
- Type Ad
- Immittance Testing-Purposes
- A type B tymp with a physical volume that is too large means...
- **need to know Peak Admittance ranges
- Tympanometry determines the...
- Type As
- Normal tympanometry indicates normal...
- Type B tympanogram
- Describing tympanic membrane abnormalities for results of the Otoscopic Inspection
- a NOT to diagnose a disorder, but to assess the outer ear and TM and middle ear for something obviously atypical
(can assist in interpreting other audiological evaluation results)
- b stiffened middle ear system.
normal shape, peak pressure, LOW peak admittance: < .3 ml
- c Type B with abnormally large ear canal volume
- d TM is intact, there's no ear canal obstruction, but there's little to no mobility of the TM
- e eustachian tube dysfunction.
-may reflect oncoming of otitis media
- f 7 months
- g structural defect of the ear, head or neck
ear canal abnormalities
tympanic membrane abnormalities
- h opposition to flow of acoustic energy at the middle ear
- i 0 daPa.
admittance (passing of acoustic energy) declines as the air pressure moves away from 0, either positively or negatively.
- j excessively middle ear system
normal shape, peak pressure, HIGH peak admittance: >2.5 ml
- k acoustic energy passed by the tympanic membrane into the middle ear
- l greater than 2.0 ml.
-reflects flaccidity of TM/ossicles, aka excessive compliance
- m where the tympanogram peak falls horizontally
- n before tympanometry
- o less than -150 daPa
- p admittance of sound into the middle ear at varying degrees of positive and negative pressure in the external auditory canal.
- q relative to the air pressure in the middle ear
- r point where there is most acoustic energy passed
- s admittance of sound at the peak of the tympanometry trace.
in ml, cc or mmho
shown by the hight of the tympanogram at its peak
- t there's an obstruction of the ear canal or improper probe placement
- u .6 to 2.5 ml
-depends on age, gender, body size, etc
- v the tympanic membrane is not intact (so it picks up the volume of the middle ear too)
- w measure stapedial muscle reflex, which stiffens the middle ear system when elicited by high intensity sounds.
- x normal middle ear function
normal shape, peak pressure and peak admittance
- y equal on both sides (normal resting position), at 0 daPa
- z flat. no peak (abnormal shape)
very low admittance; so little or no mobility
- aa Blood or effusion (drainage)
excessive cerumen or foreign object
- ab less than 0.3 ml
-reflects stiffness of the middle ear system.
- ac otitis media with effusion
- ad either the probe tip was misplaced, or there is an ear canal obstruction
- ae +100 to -150 daPa
- af the TM is not intact
- ag indicates normal middle ear function, NOT normal hearing
- ah color: not normal if white or grey.
Bulging or Retraction
Fluid line or Bubbles
- ai ...
- aj check ear canal volume
- ak 0.3 ml - 2.0 ml
- al peak admittance (sometimes static compliance)
physical volume (aka ear canal volume)
- am this term reflects what the test measures; combination of the words "impedance" and "admittance"
- an Tympanometry
Acoustic Reflex Thresholds
- ao the probe tone is constantly on and the Microphone can measure how much sound is absorbed/admitted, and how much is reflected into the ear canal
- ap middle ear pressure is negative relative to outer ear pressure. Sign of Eustachian Tube Dysfunction
- aq provided on the screen or print out.
The Physical Volume of the ear canal beyond the probe
- ar normal shape, normal peak admittance, excessively negative peak pressure.
- as Detecting middle ear disorders (tympanometry and reflexes)
Differentiating different types of middle-ear pathology (tymp. and reflexes)
Differentiating cochlear from retrocochlear pathology (reflexes & reflex decay)
Facial nerve (reflex) and eustachian tube function (tympanometry)