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 healthcare professional is assessing a child who has nephrotic syndrome. Which of the following findings should the healthcare professional expect?

• A. Hypotension
• B. Hyperglycemia
• C. Facial edema
• D. Weight gain

Correct answer: D

Rationale: In nephrotic syndrome, there is increased permeability of the glomerular filtration barrier, leading to protein loss in the urine. This results in hypoalbuminemia, causing fluid retention and edema. Therefore, weight gain due to fluid retention is a common finding in children with nephrotic syndrome.

3. A child is being assessed for Kawasaki disease. Which of the following findings should be expected?

• A. Decreased heart rate
• B. Dry, scaly skin
• C. Fever unresponsive to antipyretics
• D. Nontender cervical lymphadenopathy

Correct answer: C

Rationale: In Kawasaki disease, a child typically presents with a fever that is unresponsive to antipyretics because the disease is characterized by systemic inflammation. The persistent fever is a hallmark feature of the disease and can last for more than five days despite treatment with antipyretics.

4. When teaching a parent of a toddler with a new prescription for liquid ferrous sulfate, which of the following instructions should the nurse include?

• A. Mix the medication with milk.
• B. Give the medication with orange juice.
• C. Give the medication with meals.
• D. Administer the medication with an antacid.

Correct answer: B

Rationale: The correct answer is to give the medication with orange juice. Orange juice helps increase the absorption of iron from ferrous sulfate. This acidic environment aids in the absorption of iron, making it a suitable choice for administration. Mixing the medication with milk or an antacid may decrease iron absorption, and giving it with meals may not optimize its absorption as effectively as with orange juice.

5. At what age may an infant close their eyes to bright lights and show improved head control?

• A. 30-33 weeks after conception
• B. 34-36 weeks after conception
• C. Less than 30 weeks after conception
• D. 37-40 weeks after conception

Correct answer: A

Rationale: Around 30-33 weeks after conception, infants usually start closing their eyes in response to bright lights and exhibit enhanced head control. This developmental milestone indicates progress in their visual and motor abilities, reflecting the maturation of their neurological system. As preterm infants continue to grow and develop, they gradually acquire these skills, showcasing the natural progression of their sensory and motor functions.

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