exam 2 Flashcards
when is otoscopy used?
- detect collapsing canals
- examine pinna for malformations
- visualize tympanic membrane
- make sure the canals are not stuck with ear wax
what is seen in an otoscopy?
tympanic membrane structures
what kind of questions do you ask an adult patient? give some examples
open ended questions
what brings you in today?
what is your family history?
medications you take?
how long has this been bothering you?
what are some examples of questions you would ask parents of children?
is there history of ear infections?
general developmental milestones?
family history?
specific questions for: tinnitus, vertigo, hearing loss
what are the types of hearing testing for kids?
conditional play audiometry
visual reinforcement audiometry
threshold
the lowest sound a person can reliably respond to 50% of the time
conditional play audiometry
2-4 years
use different toys and stimuli
positive reinforcement & enthusiasm
what is the purpose of audiometry?
to find hearing threshold
pure tone AC testing
250-8000 Hz
visual reinforcement audiometry
6 months - 2 years
use warable, narrow band noise
use lighs/toys/videos
placed at 45-90 degrees from the child’s forward facing position
pure tone BC testing
250-4000 Hz
when do you test for interoctaves?
if there is a gap of 20 dB or more
what is the frequency presentation?
1000, 2000, 4000, 8000, 1000 (retest), 500, 250
what does the weber fork determine?
conductive or sensorineural hearing loss
placed on forehead
what does the rinne tuning fork test?
air vs bone conduction
placed on mastoid bone
audiogram interpretation
degree: normal, mild, moderate, etc
configuration: sloping/notch etc.
type of hearing loss
- conductive
- sensorineural
- mixed
conductive hearing loss
abnormal AC
normal BC
gap >10 dB HL
sensorineural
abnormal AC
abnormal BC
gap is 10 dB or less
mixed
abnormal AC
abnormal BC
gap is >10 dB HL
normal hearing loss
0-25 dB
slight hearing loss (children)
16-25 dB
mild hearing loss
26-40 dB
moderate hearing loss
41-55 dB
moderately-severe hearing loss
56-70 dB
severe hearing loss
71-90 dB
profound hearing loss
91+ dB
headphone interaural attenuation
40 dB
insert interaural attenuation what are they best used for?
55 dB
collapsing canals
bone conduction interaural attenuation
0 dB
air conduction masking equation
(test ear AC) - (non test ear BC) > or equal to IA (40 or 55 depending on IA)
bone conduction masking equation
(test ear AC) - (test ear BC) >10dB
threshold test
lowest level a patient can accurately respond to stimulus
tested with spondee words (baseball, airplane, oatmeal)
2/4 words
pure tone average (PTA)
average thresholds of each ear individually
500, 1000, 2000 Hz
word recognition score (WRS)
supra threshold test, 40 dB SL to the SRT
