Hearing Disorders Flashcards
What are the most common symptoms related to conductive hearing disorder?
Otologic: pain, discharge, bleeding, feeling of fullness’ blockage
Audiologic: conductive hearing loss (air/bone gap), normal word recognition, abnormal tympanogram
Otitis externa affects which part of the ear?
External ear canal infection - swimmers ear
Otitis media affects which part of the ear? What causes it?
middle ear inflammatory disorder.
Infectious: caused by bacteria; hearing loss, pain, fever
Non-infectious: caused by obstructed eustachian tube, allergy, cold, upper respiratory disorder; hearing loss
What is the cause of otosclerosis? Describe the disease process. How is it remediated?
It is inherited. It is the abnormal bone growth around the stapes footplate resulting in its fixation to the cochlear capsule and may also involve the cochlea. More common in women, first symptoms usually at 20-30 years, may be triggered by pregnancy, bilateral, progressive. surgery is required.
What are the most common symptoms related to sensorineural hearing loss?
tinnitus, vertigo, recruitment (abnormal growth in loudness compared to a growth in intensity), poor prognosis, reduced word recognition, high frequency hearing loss
Describe the major characteristics associated with presbycusis.
- Age related hearing loss
- onset: 60-70 years old, progressive
- etiology: reduced hair cell function in the inner ear
- treatment: none
- major complaint: hears but has difficultly understanding
- loss of high frequency hearing
What part of the auditory system is most affected by noise? What strategy is used to reduce the possibility of noise related hearing loss?
the basal portion of the cochlea. Hearing conservation is used: deals with preservation of remaining ability to hear. hearing screenings, worker education, ear plugs/muffs, engineering changes.
Why does prematurity increase the probability of hearing loss?
Because if gestation is shorter than usual there can be issues. The infants body did not have the full time required to develop crucial parts.
What are the “red flag” signs of an 8th nerve tumor?
Unilateral hearing loss, tinnitus, vertigo, and other neurologic signs
The term “central auditory disorders” refers to what part of the auditory system? What are the most common causes of these disorders? What are the most common patient symptoms related to the central auditory disorders?
- Refers to problems located between the brainstem and the auditory complex.
- Sound deprivation (resulting in delayed maturation of the central auditory system), insult, or injury
- Symptoms: possible peripheral hearing loss, difficulty understanding speech messages under poor listening conditions and/or if the message has complexity and multiple components.
