Raising the Bar for Success First Semester Johns Hopkins University Sensory Perception
Raising the Bar for Success First Semester Johns Hopkins University Sensory Perception Be able to know the differences between conductive and sensorineural hearing loss; know causes for both and nursing interventions for both. • Conductive – sound wave transmission interrupted b/w external canal and inner ear o Causes – external ear blockage (foreign body, ear wax), cerumen impaction, cholesteatoma, otitis media or externa, otosclerosis, serous otitis, tympanic membrane thickening, retraction, scarring, or perforation o Nursing Interventions – ear care, hearing aid • Sensorineural – sound wave transmission interrupted b/w inner ear and brain d/t loss of acoustic nerve function or damaged cochlea o Causes – acoustic neuroma, arteriosclerosis, exposure to 90 dB noise, cochlear otosclerosis, drug toxicity, head/ear trauma, impairment of the cochlea, CN VIII, or acoustic nerve, loss of hair cells and nerve fibers in cochlea, Meniere’s disease, organ of Corti degeneration, presbycusis o Nursing interventions - What is the relationship between Diabetes Mellitus and retinopathy? • Proliferative retinopathy is a complication that can arise from DM • Eye problem that can lead to vision loss, even blindness • Most common in people who do not control BS well
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