Nursing Elites

1. What is the most critical physiological change required of newborns at birth?

• A. Transition from fetal to neonatal breathing
• B. Body temperature maintenance
• C. Stabilization of fluid and electrolytes
• D. Closure of fetal shunts in the heart

Correct answer: A

Rationale: The correct answer is A: Transition from fetal to neonatal breathing. The most critical physiological change required of newborns at birth is the initiation of breathing. This transition is crucial for the newborn to start exchanging oxygen and carbon dioxide outside the womb, marking the beginning of their independent respiratory function. Choices B, C, and D are important aspects of newborn care but are not as immediately critical as the establishment of breathing for oxygenation and removal of carbon dioxide, which is essential for the newborn's survival and adaptation to extrauterine life.

2. What factor predisposes an infant to fluid imbalances?

• A. Decreased surface area
• B. Lower metabolic rate
• C. Immature kidney functioning
• D. Decreased daily exchange of extracellular fluid

Correct answer: C

Rationale: Infants have immature kidneys that are less efficient at concentrating urine, making them more susceptible to fluid imbalances. Their higher surface area to volume ratio also contributes to greater insensible fluid losses.

3. The nurse is caring for a child with hypernatremia. The nurse evaluates the child for which signs and symptoms of hypernatremia? (Select all that apply.)

• A. All below
• B. Lethargy
• C. Oliguria
• D. Intense thirst

Correct answer: A

Rationale: Hypernatremia typically presents with lethargy, oliguria, and intense thirst due to the body's attempt to conserve water. Apathy can also occur, but lethargy and thirst are more consistent indicators.

4. The physician tells the parents of a 2-year-old that the child probably has RSV. The parents ask how the diagnosis will be confirmed. How should the nurse respond?

• A. We will swab your child's nose and send the secretions for testing.
• B. There is no specific test for RSV. The diagnosis is based on symptoms.
• C. We will send a viral culture to an outside lab for testing.
• D. There is no specific test for RSV. The diagnosis is based on symptoms.

Correct answer: A

Rationale: The correct answer is A. RSV is typically diagnosed by swabbing the nose and testing the secretions. This method helps confirm the presence of the respiratory syncytial virus. Choice B is incorrect because while symptoms are important in diagnosis, specific tests like swabbing for RSV do exist. Choice C is incorrect as sending a viral culture to an outside lab is not the primary method for diagnosing RSV. Choice D is a duplicate of choice B and is incorrect for the same reasons.

5. What urine test result is considered abnormal?

• A. pH 4.0
• B. WBC 1 or 2 cells/ml
• C. Protein level absent
• D. Specific gravity 1.020

Correct answer: A

Rationale: A urine pH of 4.0 is abnormally low, indicating possible acidosis or other metabolic conditions. WBC count of 1-2 cells/ml, absence of protein, and a specific gravity of 1.020 are within normal limits.

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