Hearing Practicum Study Guide Flashcards
Can patient talk through otoscopy / tympanometry/ hearing screening?
Otoscopy- sure
But not during tympanometry and hearing screening
Before starting the first audiogram of the day, what do you need to check?
Calibrate and ambient noise check
What volume level and frequency do you start at when testing threshold?
30 dB @ 1000 Hz
How do you describe the hearing test/ tympanometry /otoscopic exam to your client?
kEEP IT VERY SIMPLE IM GOING TO CHECK YOUR HEARING
What are the norms for tympanometry?
Ear canal Volume: 0.3-2.0 mL
Pressure: -100 - +100 daPa
Compliance: > 0.2 mL
Gradient: < 250 daPa
Which norms of tympanometry are not apart of referral criteria?
Pressure
What does Volume measure
Estimate of Ear Canal Volume
Space between resting TM & outside tympanometer
What does gradient measure
How fast/slow TM is moving
what does Compliance measure
How much TM is moving (mobility/flexibility of TM)
what does Pressure measure
How much air pressure is needed to get TM to move the most
How could you identify pressure, compliance, gradient on the graph?
compliance: highest peak on y axis
pressure: max peak on x axis
gradient: with of tymp graph at half the height
How could you identify pressure, compliance, gradient on the graph?
compliance: highest peak on y axis
pressure: max peak on x axis
gradient: with of tymp graph at half the height
If patient has ear infection, what could you see on your tymp?
Compliance: Low
Gradient:Slow
or
Normal volume, everything else is none (flat line)
What would you expect on a tympanogram if the patient had perforation/occluded ear wax
Volume is small, the rest is flat lined
How many responses are necessary during school/adult regular scrrening? Threshold screening?
Screenings:
Pediatrics: present twice @ each frequency
Adults: 2 responses
Thresholds: 2/3 on ascending trials