EXAMS 3 Flashcards
auricle/pinna
outside of the ear structure movable cartilage
function of cerumen (earwax)
protect and lubricate the ears.
ASIANS and NATIVE AMERICANS MORE LIKELY TO HAVE DRY CERUMEN.
BLACK AND WHITE = usually wet
color of tympanic membrane (ear drum)
pearly gray and slightly concave
eustachian tube
equalize air pressure on both sides of the tympanic membrane. slight slanted in adults.
- more shorter horizontal in kids and more prone to infections
function of the middle ear
conduction of sounds to the inner ear
function of CN VIII
responsible for conducting nerve impulses to the brain
what is the normal pathway for hearing
air conduction
sensorineural hearing
- LOSS IS GRADUAL CAUSED BY NERVE DEGENERATION IN INNER EAR
- aging, noise damage, MEDICATIONS
presbycusis
the slow loss of hearing in both ears
labyrinth
labyrinth is the innermost part of the ear. contains the chochelar and vestibular system
IF INFLAMMED, feeds the wrong information to the brain. such as feeling like everything around you is spinning
rubella
damages the infants organ of corti which impairs hearing
otosclerosis
conductive hearing loss between 20-40 years. having to turn up volume or letting people speak louder before you can hear
Nerve degeneration
can’t tell where sound is coming from or everything sounds together or mixed up
perforated eardrum
normal finding
characteristics of recruitment
significant hearing loss when speech is low but when speech is high causes pain
what can cause startle in children
STARTLE= shake when a child hears loud noise
ototoxic drugs taken by parent during pregnancy can cause this
what should you do before inserting the speculum
pull the pinna( auricle ) up and back before inserting the speculum
INFANTS - pull the down down
purulent drainage from ear
indicates otitis externa or otitis media
bloody or clear drainage from ear
can indicate a skill fracture
voice test to assess hearing
whisper a set of random numbers and letters and then ask the patient to repeat
performing otoscopic examination on kids
perform this exam at the end of the assessment
tympanic membrane of new born babies
appear thick and opaque
asking 7 months kid to clap hands
they’ll turn their head to localize sound
high tone frequency loss
common in people with presbycusis ( OLDER PEOPLE
tympanostomy tubes
decrease the pressure and allow for drainage
otitis externa
enlarged superficial cervical nodes