Which clinical manifestation, when found in newborns, may indicate the presence of cystic fibrosis?
Meconium ileus
Cyanosis
Yellow, seedy, loose stools
Coughing
The Correct Answer is A
A. Meconium ileus is a common early sign of cystic fibrosis in newborns. It occurs when the meconium, which is the first stool of a newborn, becomes thick and sticky, leading to a blockage in the intestines. This is often one of the first signs of cystic fibrosis in infants.
B. Cyanosis, while indicative of oxygenation problems, is not a specific sign of cystic fibrosis in newborns. It may be seen in many respiratory or cardiac conditions.
C. Yellow, seedy, loose stools are more commonly associated with normal newborn digestion or conditions like lactose intolerance or gastrointestinal infections, not specifically cystic fibrosis.
D. Coughing is a symptom of cystic fibrosis, but it typically develops later as the disease progresses and affects the lungs, rather than being an early sign in newborns.
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 B
Explanation
A. Obesity is a common symptom of Cushing syndrome but is not the primary diagnostic criterion. Other tests are needed to confirm the diagnosis.
B. A 24-hour urine collection for cortisol is one of the most common and reliable methods for diagnosing Cushing syndrome. Elevated cortisol levels in the urine are indicative of the syndrome.
C. Chronic renal failure is not related to the diagnosis of Cushing syndrome. While Cushing syndrome may affect renal function, it is not the primary diagnostic tool.
D. Alcoholism can cause symptoms similar to those of Cushing syndrome, but it is not used as a diagnostic criterion. The diagnosis of Cushing syndrome requires specific tests, such as urine cortisol measurement.
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