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 parent of a preschooler is being taught by a nurse about administering ear drops. Which of the following statements by the parent indicates an understanding of the teaching?

• A. I will straighten my child's ear canal by pulling it upward and backward.
• B. I will administer the ear drops immediately after removing them from the refrigerator.
• C. I will pull the ear lobe down and back before administering the ear drops.
• D. I will massage my child's ear after administering the ear drops.

Correct answer: D

Rationale: Correct administration of ear drops includes massaging the child's ear after administering the drops to facilitate proper absorption of the medication. This action helps ensure the effectiveness of the treatment. Choices A, B, and C are incorrect. Choice A describes incorrect positioning of the ear canal, choice B mentions incorrect storage of the ear drops, and choice C describes an incorrect technique for administering ear drops.

3. A healthcare professional is preparing to collect a sample from a toddler for a sickle turbidity test. Which of the following actions should the healthcare professional plan to take?

• A. Obtain a sputum specimen
• B. Perform an Allen test
• C. Perform a finger stick
• D. Obtain a stool specimen

Correct answer: C

Rationale: The healthcare professional should perform a finger stick on a toddler as a component of the sickle turbidity test. If the test is positive, hemoglobin electrophoresis is required to distinguish between children who have the genetic trait and children who have the disease. Finger stick is a common method used to collect blood samples, especially in pediatric patients, for various tests.

4. A child is being assessed for acute poststreptococcal glomerulonephritis (APSGN). Which of the following findings should the nurse expect?

• A. Hematuria
• B. Polyuria
• C. Hypertension
• D. Diarrhea

Correct answer: C

Rationale: In acute poststreptococcal glomerulonephritis (APSGN), hypertension is a common finding due to fluid retention and decreased kidney function. This condition often presents with hypertension as a result of sodium and water retention, as well as reduced glomerular filtration rate. Hematuria, not diarrhea, is also a common symptom of APSGN due to inflammation and damage to the glomeruli. Polyuria, an increase in urine output, is not a typical finding in APSGN unless severe kidney damage leads to decreased urine concentrating ability.

5. What is an initial sign of nephrosis that the nurse might note in a child?

• A. Raspberry-like rash
• B. Periorbital edema
• C. Temperature elevation
• D. Abdominal pain

Correct answer: B

Rationale: In nephrotic syndrome, edema is a common symptom that is generalized and not easily noticeable, even by parents. However, an early sign that can be assessed by the nurse is periorbital edema, which refers to swelling around the eyes. This can be an initial indicator of nephrosis and may prompt further evaluation and intervention.

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