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External Ear-components
Auricle and external auditory canal
Middle Ear- Components
3 auditory ossicles- the malleus, incus, and stapes. Has 2 windows into the inner ear- the round and oval windows
Inner Ear- Components of the bony and inner membranous labyrinth
Fluid filled. bony labyrinth- the cochlear, vestibule, and semicircular canals
Conductive Hearing
transmission of sound waves through external and middle ear
Sensorineural Hearing
transmission of sound waves through the inner ear
Causes for Hearing Loss Prior to or at Birth (5)
prematurity, reduced oxygen, mom’s infections, mom’s drug use, and severe jaundice
Causes for Hearing Loss Post Birth (6)
genetics, diseases, chronic ear infections, excessive noise, aging, head injury
Vertigo
sensation of a spinning motion may indicate an inner problem
Subjective Vertigo
when patients feel they are spinning around
Objective Vertigo
when patients feel that the room is spinning around them
Conductive Hearing Loss (and 3 examples)
caused by something that stops sound from getting through the outer or middle ear (could be a foreign body, earwax buildup, or damaged TM)
Sensorineural Hearing Loss (and 3 examples)
occurs when there is a problem in the way the inner ear or hearing nerve works (could be aging, loud noise exposure, or ototoxic medications)
Auditory Neuropathy Spectrum Disorder
when sounds enter the ear normally, but because of damage to the inner ear or the hearing nerve, sound is not organized in a way the brain can understand it
General Routine Screening of the Ear (3)
inspect auricle, tragus and lobule
palpate the auricle and mastoid process
perform the whisper test
Focused Specialty Assessment of the Ear (5)
inspect the external auditory canal
inspect tympanic membrane
perform the weber test if client reports diminished or lost hearing in 1 ear
perform the Rinne test to differentiate conductive and sensorineural hearing loss
perform the Romberg test
Weber Test
softly strike a tuning fork and place it at the center of the client’s head, ask if they hear it best in one ear or in both. w/ conductive loss pt hears the sound best in the bad ear. w/sensorineural loss pt hears the sound best in the good ear
Rinne Test
compares air conduction (AC) and bone conduction (BC), strike tuning fork and place base of fork first on the mastoid process and move it to front of the canal once the pt no longer hears it and ask if now they can hear again. hearing through AC should be twice as long as BC and sound should continue
Romberg Test
tests equilibrium (inner ear), have pt stand w/ feet together and arms at their sides (have eyes open in this position for 20 seconds and then closed for another 20. Protect the pt with arms around them but not touching
Presbycusis
gradual sensorineural hearing loss, due to degeneration of the cochlear or vestibulocochlear nerve, typically first has difficulty with hearing high-pitched sounds (common is adults age 50+)
Types of Health Assessment: (4)
Initial comprehensive assessment, ongoing or partial assessment, focused or problem-oriented assessment, and emergency assessment
Initial Comprehensive Assessment- what is it and when is it used
Collect subjective data about patient’s health, past health, family history, and lifestyle/health practices. Also objective data gathered during physical exam. Used when a patient first enters a healthcare system and after periodically, to establish baseline data for future comparison
Ongoing or partial assessment- what is it and when is it used
Collection of data after the comprehensive database is established. Acts as a follow up to reassess changes to problems or detect new ones
Focused of problem-oriented assessment- what is it and when is it used
(does NOT replace comprehensive) done when a patient with a baseline comes in with a specific health concern. It is a thorough assessment of a particular problem and does not address unrelated areas.
Emergency assessment- what is it and when is it used
a rapid assessment done in life threatening situations, focuses on ABCs. the only concern during this assessment is to determine the status of the patient’s life sustaining physical functions
4 steps of assessment phase
collecting subjective data, collecting objective data, validating assessment data, and documenting data
6 steps of data analysis
identify abnormal and supportive clues, cluster clues, draw inferences and identify and prioritize client concerns, propose possible collaborative problems to notify PCP, identify need for referral to PCP, and document conclusions
4 nursing interview stages
preintroductory phase, introductory phase, working phase, and summary/closing phase
Preintroductory phase of the nursing interview
nurse reviews medical record before meeting w/ client. it provides insight and medical history
Introductory Phase of the nursing interview
introduce yourself, explain interview purpose, discuss any questions, and assure client of confidentiality. ensure privacy and comfortability. being at eye level, developing trust, rapport, and conveying importance and interest in the client
Working Phase of the nursing interview
gets much information (patient and family history, reason for visit, lifestyle and health practices), interprets and validates information, and then works with the client to identify problems and goals
Summary/Closing Phase of the nursing interview
summarize and validate problems and goals w/the client, identify and discuss possible plans, and finally ask if they have any other concerns or questions
Nonverbal communication
appearance, demeanor, facial expression, attitude, silence, and proactive listening
Verbal communication
open-ended questions, closed-ended questions, laundry list, rephrasing, well-placed phrases, inferring, and providing information
Communication to avoid
not enough/too much eye contact, being distracted or distant, standing when the patient is seated, asking biased or leading questions, rushing the interview
Otosclerosis
often occurs w/ aging as the auditory ossicles develop a spongy consistency resulting in conductive hearing loss
Polyp
growth inside the ear canal due to chronic ear infections or a skin cyst inside ear (cholesteatoma)
Exostosis
“surfer’s ear,” abnormal bone growth within ear canal due to chronic irritation, genetics, or unknown reasons
Microtia
congenital abnormality where the external ear does not fully develop
Tophi
hard external ear nodules associated with deposits of uric acid crystals in advanced gout
Buildup of Cerumen
excess/blocking earwax within canal
Otitis Externa and s/s
“swimmer’s ear,” may occur from fungal infection or inserting a bobby pin/finger/keys into the ear canal. s/s= itchiness inside the ear, redness and swelling, and pain when applying pressure to or pulling on ear
Acute Otitis Media and s/s
an infection in the middle ear behind the tympanic membrane, causes deep, throbbing pressure/pain, muffled hearing, a red/bubling TM, and often a fever (active infection)
Serous Otitis Media or Otitis Media w/ Effusion
buildup of non-infected fluid behind the TM. causes yellowish, bulging membrane with bubbles behind it
Blue/dark red TM
indicates blood behind eardrum due to trauma
Perforated TM
results from rupture caused by increased pressure, usually from infection or untreated trauma
Scarred TM
white spots and streaks indicate scarring from infection
Retracted TM
prominent landmarks are caused by negative ear pressure due to obstructed eustachian tube or chronic otitis media
Tinnitus
ringing, buzzing, or clicking in the ears. may be associated with cerumen blockage, high blood pressure, or ototoxic medications
What part of middle ear can be seen through otoscopic examination?
the TM, short process and handle of the malleus, and the umbo
Mobility of eardrum
perform pneumatic otoscopy w/a bulb insufflator, a health TM flutters when the bulb is inflated and returns to normal when deflated
Ototoxic medications, dangers and examples
can lead to tinnitus or hearing loss. EX= gentamicin, chemo drugs, high-dose aspirin, and many antibiotics