Assessment
This is the optimal f1-f2 ratio.
What is 1.22?
The ability of the test to detect the absence of a disease.
What is specificity?
This graph plots sensitivity vs. specificity.
What is an ROC curve?
This protocol is the least effective for eliciting OAE suppression
Contralateral noise
Negative middle ear pressure affects OAEs below this frequency.
What is 2000 Hz?
This type of tympanogram is common with otosclerosis.
What is a Type A (normal compliance and pressure) tympanogram?
The amplitude of infant OAEs differ from adult OAEs in this manner
What is higher OAE amplitudes in infants than in adults
The OAE frequency most closely related to behavioral thresholds.
What is the F2?
This is the most likely basis for the biophysical cochlear amplifier contributing to OAEs
What are the stereocilia?
This scientist discovered OAEs in 1978.
Who is David Kemp?
These stimulus characteristics should be verified before performing TEOAE testing
Spectrum
Level
Stability
These two factors reduce false positives in DPOAE screening.
What is:
6 dB SNR and absolute amplitue > 0 dB
What is conductance?
What is less than 4-6 months?
This level as is used as a rule of thumb for OAE detection when norms are not available.
What is 0 dB SPL?
This is the reason that slight middle ear pathology affects OAEs.
What is the fact that the signal travels through the middle ear two times, and reverse transmission is less effective than forward transmission.
This type of OAE arises solely from linear reflection.
What are SOAEs?
This is a method for dealing with standing wave interference
Insert the probe tip more deeply
The Cedars (2018) article recommended this protocol for hearing screening.
2nd stage: OAE
These variables determine susceptance
What is compliance and mass?
A child with otitis media will have reflectance curves shifted in this direction.
What is shifted to the right?
These values are considered adequately reliability for DPOAE and TEOAE testing
What are ± 2 dB on 2 or more runs and greater than 90%?
These are the consequences of performing OAEs with a loose probe tip?
What is leakage of low-frequency OAE energy or increased ambient noise in low frequencies.
OHC motility is responsible for this kind of OAE
TEOAEs
Very low noise floor and DPOAE levels may indicate the following:
What is a blocked microphone.
This is a method of for verifying the efficacy of hearing protection devices.
What is measuring OAEs at the beginning and ends of a workshift?
What is shifted in the right direction?
Acoustic reflexes are not reliably detected in infants in this frequency range
What are the low frequencies?
This method of calibration is effective for dealing with standing wave interference.
What is forward pressure level?
Infants have higher OAE SPLs than adults because of this physiological difference.
What is increased gain in reverse transmission in the ear canal and middle ear relative to adults?
These four factors are used as stopping rules during OAE testing
What are:
1) OAE amplitude level, 2) Noise floor level, 3) Signal-to-noise ratio, 4) Maximum recording time
These OCB fiber types terminate on efferent dendrites.
What are the medial olivary cochlear fibers.
This is criterion for change in DPOAEs for ototoxicity monitoring
Decrease in DPOAE amplitude exceeding test-retest reliability (≥2 dB)
The resonant frequency is shifted towards this frequency region for a disarticulated ossicular chain
What is towards the lower frequency region?
These anatomical differences are responsible for tympanometry differences in infants compared to adults.
What is:
•More compliance ear canal wall
•Small ear canal and middle ear space
•More horizontal orientation of the tympanic membrane with respect to the axis of the ear canal