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 A
Explanation
A. Emphysema, a type of chronic obstructive pulmonary disease (COPD), is the most common cause of a barrel chest. It occurs due to the destruction of the alveoli, leading to air trapping and overinflation of the lungs, which causes the chest to take on a rounded, barrel-like appearance.
B. Pneumonia typically causes acute symptoms like fever, cough, and difficulty breathing, but it does not cause the chronic lung changes that result in a barrel chest.
C. Tuberculosis can cause lung damage, but it does not typically result in the barrel chest shape. It is more associated with symptoms like cough, hemoptysis, and weight loss.
D. Acute respiratory distress syndrome (ARDS) is an acute condition involving rapid onset of severe respiratory distress, often due to trauma or infection. It does not cause the chronic structural changes seen in a barrel chest.
Correct Answer is B
Explanation
A. Metabolic acidosis is characterized by a low pH and a decrease in bicarbonate, but it is not typically associated with hypokalemia. In fact, acidosis may cause potassium to shift out of cells, increasing serum potassium levels.
B. Metabolic alkalosis is often associated with hypokalemia because the body compensates for alkalosis by shifting potassium into cells, leading to a lower serum potassium level. This is commonly seen with conditions like vomiting or the overuse of diuretics.
C. Hyperchloremia refers to elevated chloride levels, which may be associated with metabolic acidosis, but it is not directly linked to hypokalemia.
D. "None of the above" is incorrect because metabolic alkalosis is a known condition associated with hypokalemia.
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