Structure Of The Ear Flashcards
Structure of the ear
External
Middle
Internal
External ear
Purpose
Auricle
external auditory canal
Eardrum tympanic membrane
Collect and transmit sound waves
Middle ear
Mallus incus
Stapes
Oval window
Collect and amplify sounds
Inner ear
Cochlea 3 semicircular canal Utricle Saccule Balance and hearing
Function of ear
Collect and transmit sounds waves
Hearing
Balance and equilibrium
Assessment of the auditory system
Subjective data
Objective data
Diagnostic studies of the auditory system
diagnostic studies of the auditory system
Test fir hearing acuity:
Whisper test
Tunnig. Fork test
Audiomettry
External ear condition
Cerumen impaction Foreign bodies Gapping earring puncture External otitis Malignant external otitis
Externally otitis meaning and cause
Infection or inflammation of the epithelium of the auricle and ear canal
Frequuent seimming
Trauma to skin
By bacteria
Symptoms of external otitis
Oedema Cellulitis Fever Hearing impairment Dizziness
External otitis medical management
Reduce discomfort and swelling and remove infection
Analgesia
Ear wick
Antibiotics
Nursing management external to otitis
Appropriate administration of ear drops Patient education Donot clean auricle external with cotton topped applicators Keep ears dry Avoid swimming
Middle ear and mastoid conditions
Tympanic membrane perforation Otitis media( acute ,serous , chronic)
Acute otitis media
Symptoms
Treatment
Infection if the typanum, ossicle and space of the middle of the ear
Swelling of the eustacian tube
Ear pain
Fever
Hearing loss
Antibiotic
Surgery- grommet myringotomy
Chronic otitis media
Manifestation
Therapy
Rsult to recurrent acute otitis
Purulent discharge and inflammation
Facial pain
Hearing loss paralysis
Treat acute infection
Tympanoplasty
Ossiculoplasty
Mastoidectomy
Acute otitis media
Symptoms
Treatment
Infection if the typanum, ossicle and space of the middle of the ear
Swelling of the eustacian tube
Ear pain
Fever
Hearing loss
Antibiotic
Surgery- grommet myringotomy
Chronic otitis media
Manifestation
Therapy
Rsult to recurrent acute otitis
Purulent discharge and inflammation
Facial pain
Hearing loss paralysis
Treat acute infection
Tympanoplasty
Ossiculoplasty
Mastoidectomy
Post ear surgery nursing care
Post op nursing care Assess bleeding from the eat Anti emetics to prevent vomiting Assess dizziness Assess hearing
Teach care after ear surgery
Keep earplugs clean
Avoid getting ear wet until dr say
No swimming
Observe for complications
Conditions of the inner ea
Labyrinthitis
Meniere disease
Ototoxicity
Acoustic neuroma
Otitixic drugs
Various medications may affect hearing
Blood levels should monitored
Common drugs associated with otptoxicity
Loop diuretic
Cancer chemotherapy
Salicytes
Antibiotics
Hearing loss and deafness
Common disability
More than 50 % people over 60 years
Industrial deafness factors- exposure to excessive noise levels
Early symptoms of deafness
Inability to hear in a group
Tv too loud
Tinnitus: perception of sound ; ringing in the ears
Types of hearing loss
Conductive mixed functional central
Health promotion
Noise control
Immunisation
Awareness of ototoxic substance
Aids for hearing and
Hearing aids Cochlear implantat Speech reading Sign language Hearing guide sogs Assisted hearing device
Guidelines for communicating with the hearing
- use a low tone normal voice
- Speak slowly and distinctly
- reduce background noise and distractions
- face the person and get his or her attention
- speak into the less impaired ear
- use gestures and facial expressions
- if necessary write out information or obtain a sign language translator
Health promotion ear protection
- ear protection should be worn for any activities involving high level noise
- ear protection greatly reduce ear damage caused by loud noise
- hearing loss (before it progresses further ) can be detected by periodic audiometric screenings
