Nursing Elites

1. The renin-angiotensin-aldosterone system plays an important role in maintaining blood pressure. Which compound in this system is most powerful at raising blood pressure?

• A. Angiotensin I
• B. Angiotensin II
• C. Angiotensin III
• D. Renin

Correct answer: B

Rationale: Angiotensin II is the most potent compound in the renin-angiotensin-aldosterone system for raising blood pressure. It acts as a powerful vasoconstrictor, leading to increased systemic vascular resistance. Angiotensin II is formed from angiotensin I through the action of the angiotensin-converting enzyme. While renin initiates the cascade by converting angiotensinogen to angiotensin I, it is angiotensin II that exerts the strongest pressor effect.

2. During a developmental screening, a 4-year-old child is asked to perform a task. Which of the following tasks should the nurse expect the child to perform?

• A. Draw a stick figure with seven body parts
• B. Draw a circle
• C. Identify right from left hand
• D. Tie their shoelaces

Correct answer: B

Rationale: At 4 years old, children are typically able to draw a circle, which is a developmental milestone for their age. Drawing a stick figure with specific body parts might be beyond their developmental level, identifying right from left hand can be challenging, and tying shoelaces requires more advanced motor skills.

3. Which statement is true regarding playful children?

• A. They exhibit flexible problem-solving.
• B. They have low intelligence scores.
• C. They need clear rules and directions to succeed.
• D. They do not perform well in school.

Correct answer: A

Rationale: The correct statement is that playful children exhibit flexible problem-solving. Playful children often engage in creative and imaginative thinking, allowing them to approach problems in unique ways. This fosters better problem-solving abilities compared to those who may be more rigid in their thinking. Choice B is incorrect as there is no direct correlation between being playful and having low intelligence scores. Choice C is incorrect as playful children may thrive in environments that encourage creativity rather than rigid rules. Choice D is incorrect as being playful does not necessarily equate to poor academic performance.

4. Which assessment finding, after the dialysate is drained during peritoneal dialysis for a child experiencing acute renal failure, would warrant further action by the nurse?

• A. The dialysate is clear upon return.
• B. The volume of drained dialysate is less than the volume infused.
• C. The child is restless and eager to play.
• D. The child's vital signs remain consistent with those noted during infusion.

Correct answer: B

Rationale: A lower volume of drained dialysate compared to the volume infused suggests a possible obstruction or malfunction in the dialysis process. This finding could compromise the effectiveness of the treatment and needs prompt assessment and intervention by the nurse to ensure the child's safety and well-being. Choices A, C, and D are not indicative of complications during peritoneal dialysis. The clarity of the dialysate, the child's behavior, and the consistency of vital signs are not alarming findings that would require immediate action by the nurse.

5. Which assessment data would cause suspicion that a 3-year-old child has Hirschsprung disease?

• A. Clay-colored stools and dark urine
• B. History of early passage of meconium in the newborn period
• C. History of chronic, progressive constipation and failure to gain weight
• D. Continual bouts of foul-smelling diarrhea

Correct answer: C

Rationale: Hirschsprung disease is characterized by chronic, progressive constipation and failure to gain weight. These symptoms are indicative of the disorder due to the absence of ganglion cells in the distal colon, leading to impaired motility and obstruction.

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