Etiologies of hearing loss Flashcards
What are the three major types of hearing loss
conductive, sensorineural, and mixed hearing loss
an issue is in the outer or middle ear causing a hearing loss
conductive hearing loss
hearing loss where air conduction is impaired but bone conduction is intact
conductive hearing loss
hearing loss where there is an issue in the inner ear or auditory pathway to the brain
sensorineural hearing loss
hearing loss where both bone conduction and air conduction are impaired
sensorineural hearing loss
hearing loss where the issue is in both the outer/middle ear and inner ear/auditory pathway
mixed hearing loss
Both air conduction and bone conduction are impaired, but air conduction is more impacted than bone conduction
mixed hearing loss
give some examples of etiologies in the outer ear which lead to conductive hearing loss
disorders of the auricle, atresia of the external auditory canal, external otitis, earwax in the external auditory canal
list some common disorders of the auricle
microtia (small auricle), anotia (no auricle), or Down syndrome
lack of an ear canal or a narrow ear canal
atresia of external auditory canal
common in elderly patients and young children, of concern when using over-ear headphones or any apparel pushing on pinna
collapsing external auditory canal
when clients come in with foreign bodies in their external auditory canal what is the first priority
removing the object from the canal
another name for swimmers ear - inflammation of skin of external auditory canal that can cause temporary conductive hearing loss in severe cases
external otitis
list the subtypes of external otitis
otomycosis-fungal infection, furunculosis-infection of hair follicles, myringitis-infection of tympanic membrane, osteitis or osteomyelitis-inflection of bone
list the two types of growths in the external auditory canal and what they are
extoses- outward projections of bone, osteomas- bony tumors
what are the intervention methods for impacted ear wax causing conductive hearing loss
irrigation or cerumen removal
what two factors of the perforation of the tympanic membrane lead to its severity
size and location
list some etiologies in the middle ear that can lead to conductive hearing loss
negative middle ear pressure, otitis media, cholesteatome, otosclerosis, ossicular chain discontinuity
retracted tympanic membrane that doesn’t allow it to vibrate freely
negative middle ear pressure
what is a common cause of negative middle ear pressure
Eustachian tube dysfunction
infection or inflammation of the middle ear
otitis media
list the subtypes of otitis media
suppurative otitis media-contains pus or other discharge, with effusion-contains clear fluid, chronic- three or more months not infected but inflamed, acute- short term which is cause by viral or bacterial infection
what two issues can occur from acute otitis media if gone untreated
facial palsy or mastoiditis
an abnormal growth of skin behind the eardrum and middle ear space
cholesteatoma