Ch 13 Ear Diagnostic Procedures/ Therapeutic Procedures Flashcards
audiogram
graphic record that illustrates the results of audiometry
audiometer
instrument to measure hearing
audiometry
test of hearing ability by determining the lowest and highest intensity and frequencies that a person can distinguish. The patient may sit in a sound-proof booth and receive sounds through earphones as the technician decreases the sound or lowers the tones
decibel
measures the intensity or loudness of a sound. Zero decibels is the quietest sound measured and 120dB is the loudest sound commonly measured.
hertz
measurement of the frequency or pitch of sound. The lowest pitch on an audiogram is 250 Hz. The measurement can go as high as 8000 Hz, which is the highest pitch measured.
Rinne and Weber tuning-fork tests
Tests that assess both nerve and bone conduction of sound. The physician holds a tuning fork, an instrument that produces a constant pitch when it is struck, against or near the bones on the side of the head.
octoscope
instrument to view inside the ear canal
otoscopy
examination of the ear canal, eardrum, and outer ear using an otoscope
tympanogram
graphic record that illustrates the results of tympanometry
tympanometer
instrument used to measure the movement of the tympanic membrane
tympanometry
measurement of the movement of the typmanic membrane. Can indicate the presence of pressure in the middle ear
falling test
Test used to observe balance and equilibrium. The patient is observed balancing on one foot, then with one foot in front of the other, and then walking forward with eyes open. The same test is conducted with the patient’s eyes closed. Swaying and falling with the eyes closed can indicate an ear and equilibrium malfunction.
American Sign language (ASL)
nonverbal method of communicating in which the hands and fingers are used to indicate words and concepts. Used by both persons who are deaf and persons with speech impairments
hearing aid
apparatus or mechanical device used by persons with impaired hearing to amplify sound. aka amplification device
cochlear implant
mechanical device surgically placed under the skin behind the outer ear (pinna) that converts sound signals into magnetic impulses to stimulate the auditory nerve. Can be beneficial for those with profound sensorineural hearing loss