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Can a moderatley severe sensorineural hearing loss be caused by presbycusus and noise exposure?
5) According to the NIH, exposure to noise at 85dB for one working day can cause permanent hearing damage. What is the intensity of this sound?
Which of the following are the correct statements about hearing disorders? (two correct answers) Presbycusis is a rare condition that normally occurs among people aged 75 and older. ■ Noise-induced hearing loss is not very common, it is not considered to be an age-related condition and occurs rarely among people of all ages. Both presbycusis and noise-induced hearing loss result in sensorineural hearing loss. | DPresbycusis is a gradual, age-related inability to hear high-pitched sounds.
a worker is exposed to an 8 hour twa noise exposure of 98 dba. what minimum NRR would be needed to confidently ensure that the workers hearing protection would be below 85 dBA? (show all work)
One of the occupational hazards of being an airplane pilot is the hearing loss that results from being exposed to high noise levels. To document the magnitude of the problem, a team of re- searchers measured the cockpit noise levels in 18 commercial aircraft. The results (in decibels) are as follows (84). Plane Noise Level (dB) Plane Noise Level (dB) (a) Assume that cockpit noise levels are normally distributed. Use Theorem 7.3.4 to construct a 95% confidence interval for the...
30 seconds of exposure to 115 dB sound can damage your hearing, but a much quieter 94 dE may begin to cause damage after 1 hour of continuous exposure. Part A You are going to an outdoor concert, and you'l be standing near a speaker that emits 56 W of acoustic power as a spherical wave. What minimum distance should you be from the speaker to keep the sound intensity level below 94 dB? Express your answer to two significant...
Discuss the sense of isolation that can come from hearing loss in the elderly. Ask students to think about times when they were in a group and two people in the group were whispering back and forth
At a manufacturing shop the noise exposure levels for an employee are as follows: 3 hours and 45 minutes at 90 dBA 2 hour and 15 minutes at 92 dBA 45 minutes at 95 dBA 30 minutes at 97 dBA 45 minutes without any noise What is the value of TWAN? 1.1900 0.1391 None of them is the answer 1.0021
Severe combined immunodeficiency (SCID) can be caused by a. failure of V(D)J recombination. b.failure of lymphoid progenitor survival. c. failure of T-cell receptor signaling. d. All of the answers are correct. e. failure of cytokine receptors.
14.Which of the following terms is an abnormal overflow of tears caused by blockage of the lacrimal duct? Select one: a. hordeolum b. epiphora c. entropion d. lacrimation 15.Chalaza means: Select one: a. nodular inflammation b. hailstone c. dim d. a slackening 16.A cochlear implant would be recommended for patients with what type of hearing loss? Select one: a. severe in both ears b. mild in both ears c. mild in one ear d. severe in one ear
Mr. Mac is Hard of Hearing (HOH). Identify five interventions specific to a patient with hearing loss to include in the plan of care.