Mortality for patients with progeria is most commonly a result of
Atherosclerosis
Psychosis
Rapid aging
Scleroderma
The Correct Answer is A
A. Atherosclerosis, the buildup of fatty plaques in the arteries, is a common cause of death in patients with progeria. These patients experience accelerated aging, which leads to early development of cardiovascular diseases, including atherosclerosis, which contributes to their early mortality.
B. Psychosis is not typically associated with progeria. The condition primarily affects physical aging processes rather than causing psychiatric symptoms like psychosis.
C. While rapid aging is the hallmark of progeria, it is not the direct cause of death. Instead, it leads to the development of age-related diseases like cardiovascular issues, which are the main contributors to mortality.
D. Scleroderma is a condition involving the hardening of the skin and connective tissues, but it is not a direct cause of death in progeria. The primary cause of death is related to cardiovascular complications such as atherosclerosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Increased total body water due to an increase in muscle mass is incorrect because muscle tissue holds more water than fat tissue, but as people age, they typically lose muscle mass, not gain it.
B. Decreased total body water due to a decrease in muscle mass is correct. As people age, muscle mass generally decreases, and since muscle tissue contains more water than fat tissue, the total body water decreases with aging.
C. Increased total body water caused by increased fat mass is incorrect because fat tissue actually holds less water than muscle tissue. As fat mass increases, total body water typically decreases.
D. Decreased total body water caused by decreased fat mass is incorrect because fat tissue does not significantly contribute to total body water, and the loss of fat does not have a significant impact on water content in the body.
Correct Answer is C
Explanation
A. In diabetic ketoacidosis (DKA), serum bicarbonate is typically decreased, not increased. The decrease is due to metabolic acidosis resulting from the accumulation of ketones.
B. Serum potassium is often elevated in DKA initially due to the shift of potassium from inside the cells to the bloodstream as a result of acidosis. However, potassium levels may drop with treatment, especially with insulin administration, which drives potassium back into cells.
C. Urine pH in DKA is often acidic due to the presence of ketones, which are acidic byproducts of fat metabolism. A urine pH of 4.0 indicates aciduria, which is consistent with ketoacidosis.
D. Serum pH in DKA is typically low (below 7.35), indicating acidosis. A serum pH of 7.5 would suggest alkalosis, which is not typical of DKA.
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