NURSING NUS213-HEALTH_ASSESSMENT_EXAM_2. Question and Answers

NURSING NUS213-HEALTH_ASSESSMENT_EXAM_2. Question and Answers HEALTH ASSESSMENT EXAM 2 REVIEW: CHAPTER 17 ASSESSING EARS • The middle ear or tympanic cavity is a small air filled chamber in the temporal bone that consist of? 3 auditory ossicles; Maleus, Incus and stapes • responsible for transmitting sound waves from the ear drum to inner ear through the oval window. What is conductive hearing? • the sound waves through the external and middle ear • caused by impacted ear wax, otitis media, foreign object, perforated eardrum, drainage in the middle ear or otosclerosis. The transmission of sound waves in the inner ear is referred to as? • Perceptive or • sensorineural hearing • caused by organ of corti, cranial nerve 8 or temporal lobe of the brain. What is tinnitus and what causes it? • ringing, roaring or crackling in the ears • maybe associated with excessive ear wax buildup, high blood pressure or certain ototoxic medications such as ( streptomycin, gentamicin. Kanamycin, neomycin, ethacryin acid, lasix, indomethacin or aspirin) • loud noises Three types of hearing loss are? 1. Conduction hearing loss- when hearing loss is due to problems with the ear canal, ear drum or middle ear and its little bones( the malleus, incus, stapes.) 2. Sensorineural hearing loss- due to problems with the inner ear also known as nerve related hearing loss. 3. Mixed hearing loss- combination of conductive and sensorineural hearing loss. There maybe damage in the outer or middle ear and inner ear (cochlea or auditory nerve) What are some risk assessment for hearing loss? • Aging with many years of exposure to sounds that can damage the ears • heredity, genetics related to ear damage • occupational loud noises as regular part of the work environment (farming, construction, factory work) • Recreational noises and exposure to explosive noises ( firearms, fireworks, snowmobiling, motorcycling listening to loud music) • ototoxic medications • illness with high fever (ex meningitis) How to inspect the Tympanic membrane? • Note color, shape, consistency and landmarks • Normal findings should be; pearly gray, shiny