Jane, diagnosed with diabetes 10 years ago, develops visual impairment, primarily because of:
Microvascular changes in the eye
Development of exophthalmos
Abnormal metabolism in the lens
Cataract development
The Correct Answer is A
A. Diabetic retinopathy, a common complication of diabetes, is caused by microvascular changes in the eye. Chronic high blood sugar can damage the small blood vessels in the retina, leading to visual impairment. This is the most common cause of visual impairment in people with long-standing diabetes.
B. Exophthalmos is typically associated with thyroid disorders, particularly Graves' disease, not diabetes.
C. Abnormal metabolism in the lens can lead to cataracts, but it is not the primary cause of visual impairment in diabetic patients.
D. Cataracts are more common in people with diabetes, but they are not the primary cause of visual impairment in diabetes. Diabetic retinopathy due to microvascular damage is the leading cause.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Cystic fibrosis (CF) patients typically lose more salt through sweat, so they need extra salt in their diet, not a restriction. Restricting salt is not recommended for CF patients.
B. Limiting fluid intake is not appropriate for CF patients, as they often require adequate hydration to help thin mucus and improve respiratory function.
C. CF patients need a high-calorie, high-fat, and high-protein diet to support their increased metabolic demands and to help with nutrient absorption, as they often have malabsorption issues. Low-fat meals are not recommended.
D. Pancreatic enzyme replacement therapy is essential for CF patients because their pancreas does not produce enough enzymes to properly digest food. These enzymes should be taken with meals and snacks to aid digestion and nutrient absorption.
Correct Answer is A
Explanation
A. The absence of chronic disease is not a strict requirement for effective perfusion. While chronic diseases can impact perfusion, such as through the effects of diabetes or hypertension on the cardiovascular system, effective perfusion can still occur in individuals with chronic conditions if other factors are managed appropriately.
B. Adequate blood volume is essential for effective perfusion because without enough blood, oxygen and nutrients cannot be delivered to tissues.
C. An open airway is crucial for effective perfusion because it allows for proper oxygenation, which is necessary for the delivery of oxygen to tissues via the bloodstream.
D. Functional systemic circulation is required for effective perfusion, as it ensures that blood can flow throughout the body to deliver oxygen and nutrients to tissues and remove waste products.
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