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. Which food should be avoided by a child with acute glomerulonephritis to prevent hyperkalemia, as recommended by the nurse?

• A. Dairy products
• B. Whole-grain cereals
• C. Organ meats
• D. Bananas

Correct answer: D

Rationale: Bananas are rich in potassium, which can contribute to hyperkalemia in individuals with acute glomerulonephritis. It is essential to limit potassium intake to prevent further complications associated with high potassium levels in the blood.

3. A healthcare provider is assessing an infant who has hydrocephalus and is 6 hours postoperative following placement of a ventriculoperitoneal shunt. Which of the following findings should the provider report to the healthcare provider?

• A. Decreased urine output
• B. Temperature of 37.5 degrees C (99.5 degrees F)
• C. Heart rate 130/min
• D. Leakage of cerebrospinal fluid

Correct answer: D

Rationale: The provider should report the leakage of cerebrospinal fluid to the healthcare provider as it may indicate shunt malfunction or infection, requiring immediate attention to prevent complications. Decreased urine output, a temperature of 37.5 degrees C, and a heart rate of 130/min are common postoperative findings and may not be directly related to shunt function. While these findings should still be monitored, they do not require immediate reporting like cerebrospinal fluid leakage.

4. A child is admitted to the hospital for hypercalcemia and is placed on diuretic therapy. Which diuretic would the nurse expect to administer?

• A. Furosemide (Lasix)
• B. Hydrochlorothiazide (Aquazide)
• C. Spironolactone (Aldactone)
• D. Mannitol (Osmitrol)

Correct answer: A

Rationale: Furosemide (Lasix) is a loop diuretic that acts on the ascending loop of Henle in the kidney to increase calcium excretion. In the setting of hypercalcemia, where there is an elevated level of calcium in the blood, Furosemide can help promote the elimination of excess calcium through the urine, thereby aiding in the management of hypercalcemia.

5. While caring for four different pediatric clients, which child is at the highest risk for dehydration?

• A. 7-year-old child with migraine headaches
• B. 4-year-old child with a broken arm
• C. 2-year-old child with cellulitis of the left leg
• D. 18-month-old child with tachypnea

Correct answer: D

Rationale: The 18-month-old child with tachypnea is at the highest risk for dehydration due to increased insensible water loss associated with rapid breathing.

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