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 C
Explanation
A. Cystine stones are rare and occur due to a genetic disorder called cystinuria. They are not the most common type of renal calculi.
B. Uric acid stones are also relatively common, especially in individuals with gout or those with high levels of uric acid in the urine. However, calcium oxalate is more common.
C. Calcium oxalate is the most common type of renal calculi, accounting for about 70-80% of kidney stones. These stones form when calcium combines with oxalate in the urine.
D. Struvite stones are associated with urinary tract infections caused by urease-producing bacteria. They are less common than calcium oxalate stones.
Correct Answer is C
Explanation
A. Pleural effusion involves the accumulation of fluid in the pleural space, which typically causes a decrease or absence of breath sounds, not wheezing.
B. Emphysema is a type of chronic obstructive pulmonary disease (COPD) that leads to damage of the alveoli and air sacs, which may result in wheezing, but it is not the most direct cause of high-pitched wheezing.
C. High-pitched wheezing is often a result of airway constriction or narrowing, which occurs in conditions like asthma, bronchitis, or anaphylaxis. The sound is caused by turbulent airflow through narrowed airways.
D. Hemoptysis refers to coughing up blood and does not cause wheezing. It is a symptom that may be associated with various respiratory conditions, but it does not directly cause the wheezing sound.
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