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. A nurse in an emergency department is caring for a school-age child who is experiencing an anaphylactic reaction. Which of the following is the priority action by the nurse?

• A. Elevate the head of the child's bed
• B. Insert a large-bore IV catheter for the child
• C. Determine the allergen that caused the child's reaction
• D. Administer IM epinephrine to the child

Correct answer: D

Rationale: In the management of anaphylaxis, the priority action for the nurse is to administer IM epinephrine to the child. Epinephrine is the first-line treatment for anaphylaxis as it helps reverse the severe manifestations of the reaction by constricting blood vessels, relaxing airway muscles, and decreasing hives and swelling. Elevating the head of the child's bed may be beneficial for respiratory distress but is not the priority over administering epinephrine. Inserting a large-bore IV catheter may be necessary for fluid resuscitation but is not the initial priority. Identifying the allergen is important for prevention and future management but is not the immediate action needed in the acute phase of an anaphylactic reaction.

3. A child is being assessed for possible appendicitis with perforation. Which of the following findings should the nurse expect?

• A. Hyperactive bowel sounds
• B. Abdominal distension
• C. Hypoactive bowel sounds
• D. Bradycardia

Correct answer: D

Rationale: In a child with appendicitis and possible perforation, the nurse should expect bradycardia due to peritoneal irritation. Bradycardia is a common response to peritoneal inflammation or infection, indicating a possible serious complication. Hyperactive bowel sounds, abdominal distension, and hypoactive bowel sounds are more commonly associated with other gastrointestinal conditions and are less likely to be present in a child with appendicitis and perforation. Therefore, the correct answer is bradycardia (D) as it aligns with the expected physiological response in this scenario.

4. What will the nurse caution the parents of a child who has had a nephrectomy that he will have to avoid?

• A. Contact sports
• B. Horseback riding
• C. Alcohol
• D. Diuretic medications

Correct answer: A

Rationale: Children who have only one kidney should avoid contact sports to prevent injury to that remaining organ.

5. Parents are speaking with the urologist about their son's undescended testicle. Which statement by the child's father causes the nurse to determine he understands the information presented?

• A. An undescended testicle can reduce fertility.
• B. The testicle usually descends spontaneously during the first month of life.
• C. Surgical correction reduces the risk for testicular tumors.
• D. The optimal time to surgically correct the condition is at diagnosis.

Correct answer: A

Rationale: The correct answer is A because an undescended testicle can reduce fertility. Even after surgical correction (orchiopexy), fertility rates may be reduced, especially when one testis remains undescended. The statement in choice B is incorrect as the testicle should have descended into the scrotum by the time the infant is 4-6 months old. While choice C is true that surgical correction can reduce the risk of testicular tumors, the question focuses on the father's understanding of the information presented, which is better reflected in choice A. Choice D is incorrect because the optimal time for surgical correction of an undescended testicle is typically around 6-18 months of age, not necessarily at the time of diagnosis.

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