Chapter_3_study_guide-1 - Chapter 3"Where Does It All Begin...

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Chapter 3: “Where Does It All Begin?” 1. How would Brueggemann’s statement”…beyond sound are no human relationships, no government, no equality of existence, no inkling of knowledge” be likely to affect hearing and Deaf parents’ responses to the diagnosis of deafness in their children? Many parents grieve when they realize their child is diagnosed as deaf, and adults who could hear grieve as they see their ability to hear others diminishing. 2. How would you expect psychological development and functioning to differ between a child born deaf of deaf parents and one who acquired deafness due to meningitis at the age of two? Many deaf people are, to some extent, molded psychologically not only by the functional effects of their hearing but also by physiological or neurological involvement depending on their specific etiology 3. Define “sensorineural hearing loss.” A hearing loss most commonly situated in the inner ear or, less frequently, in the auditory nerve, or both 4. Give three examples of ways in which medical factors can influence prevalence of deafness. Temporary dramatic increase in the deaf population, vaccines and medical advances reduced incidences of hearing loss due to certain conditions, also increased incidences of hearing loss due to improved survival rates for infants, especially those born prematurely 5. How does rubella cause deafness? The invading virus attacks fetal tissues and reduces cell division. Damage can occur in the developing ear, eye, brain, and heart. Hearing loss occurs in 60 to 80 percent of these infants. 6. What disabilities can accompany deafness with rubella as the etiology? Learning disabilities and other neurological difficulties 7. What is the most common cause of congenital viral-induced hearing loss? Cytomegalavirus, cmv a member of the herpes group of viruses 8. Which of the major etiologies for deafness causes the most severe hearing loss among children? Post-meningitic children have the most severe hearing losses among the major etiologies for deafness 9. Is incidence of deafness caused by the Rh factor increasing or decreasing? Decreasing, it used to be a leading cause of deafness, but currently is controllable with Rh factor immunizations for the Rh mother and blood tranfusions for the Rh infant after birth 10. Why is it often difficult to define the cause of deafness when ototoxic drugs are used? Detecting hearing loss in young children based on audiometric data is difficult, not always clear whether it is the disease or the drug used to treat the disease that causes hearing loss 11. What percentage of premature infants have been found to have sensorineural hearing loss?
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