Nursing Elites

1. What is a causative factor of Hirschsprung disease?

• A. Frequent evacuation of solids, liquids, and gases
• B. Excessive peristaltic movement
• C. Absence of parasympathetic ganglion cells in a portion of the colon
• D. One portion of the bowel telescoping into another

Correct answer: C

Rationale: The correct answer is C: Absence of parasympathetic ganglion cells in a portion of the colon. Hirschsprung disease is a congenital condition characterized by the absence of nerve cells (ganglia) in parts of the colon. This absence leads to a lack of peristalsis in the affected segment, resulting in severe constipation and bowel obstruction. Choices A, B, and D are incorrect. Choice A describes symptoms of diarrhea rather than a causative factor of Hirschsprung disease. Excessive peristaltic movement (choice B) is not a causative factor but rather the opposite, as Hirschsprung disease is associated with reduced peristalsis. Choice D, which refers to intussusception, is a different condition unrelated to Hirschsprung disease.

2. Which measure best describes the amounts of nutrients that should be consumed by the population?

• A. The Dietary Reference Intakes, as they provide a set of nutrient intake values for healthy people in the United States and Canada
• B. The Tolerable Upper Intake levels, as they indicate the maximum daily amount of a nutrient considered safe for most healthy people
• C. The Estimated Average Requirements, as they reflect the average daily amount of a nutrient needed to maintain a specific function in half of the healthy individuals of a population
• D. The Recommended Dietary Allowances, as they represent the average daily amount of a nutrient considered adequate to meet the known nutrient needs of practically all healthy individuals

Correct answer: D

Rationale: The Recommended Dietary Allowances (RDAs) are the best measure to describe the amounts of nutrients that should be consumed by the population. RDAs represent the average daily intake level that meets the nutrient requirements of nearly all (97-98%) healthy individuals in a particular life stage and gender group. Choice A, the Dietary Reference Intakes, provide a set of nutrient intake values but do not specifically address the average daily amount of a nutrient considered adequate for practically all individuals. Choice B, the Tolerable Upper Intake levels, focus on the maximum daily amount of a nutrient deemed safe for most healthy people, not the average daily amount needed. Choice C, the Estimated Average Requirements, reflect the average daily amount of a nutrient needed by half of the healthy individuals, which is not as comprehensive as the RDAs that cater to nearly all healthy people.

3. What is a common sign of a urinary tract infection (UTI) in toddlers?

• A. Excessive thirst
• B. Frequent, painful urination
• C. Increased appetite
• D. Skin rash

Correct answer: B

Rationale: Frequent, painful urination is a common sign of a urinary tract infection in toddlers. This symptom is often accompanied by possible fever and irritability. Excessive thirst (Choice A) is not a typical sign of a UTI in toddlers and is more commonly associated with conditions like diabetes. Increased appetite (Choice C) is not a typical symptom of a UTI in toddlers either. Skin rash (Choice D) is not a common sign of a UTI but may indicate other conditions like allergies or infections.

4. What is a common symptom of congenital heart disease in infants?

• A. Excessive weight gain
• B. Difficulty breathing
• C. High blood pressure
• D. Increased appetite

Correct answer: B

Rationale: Difficulty breathing is a common symptom of congenital heart disease in infants. Infants with congenital heart disease may experience difficulty breathing due to impaired cardiac function, which affects the heart's ability to pump blood effectively. This symptom is often due to issues like heart failure or fluid accumulation in the lungs. Excessive weight gain (Choice A) is not typically associated with congenital heart disease in infants. High blood pressure (Choice C) is less common in infants with congenital heart disease compared to adults. Increased appetite (Choice D) is not a typical symptom of congenital heart disease in infants.

5. What action should be taken for a 2-year-old with laryngotracheobronchitis in an oxygen tent?

• A. Restrain the child and notify the healthcare provider
• B. Increase the oxygen concentration
• C. Take the child to the playroom
• D. Ask the mother to help in comforting the child

Correct answer: B

Rationale: In laryngotracheobronchitis (croup), a child may become restless due to poor oxygenation. Increasing the oxygen concentration in the oxygen tent is crucial to improve oxygenation levels and manage symptoms effectively. Restraint is not appropriate in this situation, as it may cause distress and worsen the child's condition. Taking the child to the playroom is not indicated when the child requires oxygen therapy. While comforting the child is important, the priority in this scenario is to optimize oxygen delivery to improve respiratory distress.

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