Answer for question 1.28 is E. Debbie, Alamo got it right The insidious nature of this patient’s symptom points to an ongoing process rather than an acute development such as stroke. Furthermore, in patients presenting with dizziness, vertigo, or imbalance, the proportion of cases attributable to stroke is very low (SOE=A). The sense of equilibrium is mediated by central integration of multiple inputs from vestibular, visual, and proprioceptive systems. Dysequilibrium is believed to be multifactorial—a variety of disorders can contribute to a subjective sensation of imbalance. For example, the number of vestibular hair cells decreases as people age; although it is unclear what degree of loss yields functional deficits, vestibular hair cell loss is a possible source of this patient’s sense of imbalance. Age-related ocular conditions, such as glaucoma, cataracts, and macular degeneration, may contribute to imbalance. Other possible age-related contributors include disorders of peripheral sensory organs, as found in peripheral vascular disease and diabetes mellitus, and musculoskeletal conditions such as arthritic changes in the cervical spine, knees, and hips.
Posted on: Tue, 04 Mar 2014 04:07:51 +0000
Recently Viewed Topics
© 2015