hearing and balance disorders
Terms in this set (17)
is hearing loss a part of the aging process?
hearing loss or dysfunction of the INNER ear presents what problems/concerns:
what EDUCATION would you provide to the client with hearing loss or dysfunction of the inner ear?
ADL's like driving, smoke detectors, etc..there would need to be a different way for them to be able to "hear"-like flashing lights instead
what can cause hearing loss?
loud noises, meds, earwax blockage, Diabetes, KD, meningitis, traumas,
diving, flying,(these two would be from ruptured membrane)
what are the FOUR categories of hearing loss:
1.conductive-result of a lesion between the external auditory canal and the cochlea/ from a build up of cerumen, middle ear infxns, fluid in the middle ear, punctured tympanic membrane, edema, tumors, foreign bodies, otosclerosis
2. sensorineural-from a defect in the sensory portion of the cochlea or in the nerve transmission to CNS
3. noise-induced- loss of hearing due to loud noises
4. mixed hearing loss- have 2 or more types of hearing impariment
inner ear hearing.....
loss causes balance disorders and conductive problems
may be caused by viral or bacterial infxns, head injury, or blood circulation disorders that affect the inner ear or brain
-can cause risk for falls, and safety
if someone has a hearing disorder, what products/things can they use to help them?
hearing aid, closed-captioning tv, special phone, altered door bell, special smoke alarm, vibrating things instead of ringing
what does synsorineural hearing loss come from:
aging, head injury, infxn, ototoxic drugs, genetics, loud noises, myxedema, labyrinths, DM, acoustic neuroma, Meniere's diseases, or presbycusis
what are some s/s of ototoxicity regarding tinnitus, vertigo, and hearing loss?
tinnitus-usually not heard by others.
two types: objective, subjective...
1.objective- can be heard by others and is caused by vascular problems of the carotid arteries or jugular veins
2. subjective- can only be heard by patients and can be caused by metabolic, pharmacologic, psychogenic, and/or neurological abnormalitites
vertigo= illusion of rotational movt- from serious central cerebral dysfxn (brain tumor, trauma...), or a benign peripheral problem (semicircular canals, peripheral nerve). it is a cardinal symptom of vestibular dysfxn
s/s: N,V, presyncope, disequalibirium, light-headedness
85% of patients with tinnitus also have?
ototoxic tinnitus is caused by:
ACE inhibitors, anesthetics, antibiotics
*patients who take salicylates, erythromycin, and loops can develop bilateral and permanent ototoxic hearing loss
what do loops affect as far as hearing loss?
damage stria vascularis in the organ of Corti
what do aminoglycosides do as far as hearing loss?
damage cochlear hair cells, causing bilateral hearing loss and dizziness.
what do vancomycin do as far as hearing loss?
results in high-frequency hearing loss, which may lead to permanent deafness
what does the "nurse" need to look for in hearing loss s/s?
ask about: spontaneous purulent, clear CSF or bloody drainage/bilateral? amount? acute/chronic?, fever?, recent upper respiratory infxn, cough, earache...that would indicate an ear infxn
what would the "nurse" ask regarding vertigo s/s?
describe physical sensation, fallen or been injured from vertigo?, does it occur when changing positions?, intermittent or consistent?, unsteady with gait? meds taking?
-they need to be referred to a doctor to check for possible brain tumors
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