Nursing Elites

1. What is the most critical physiologic 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 onset of breathing is the most immediate and critical physiologic change required for the transition to extrauterine life. Factors that interfere with this normal transition increase fetal asphyxia, which is a condition of hypoxemia, hypercapnia, and acidosis. While body temperature maintenance, stabilization of fluid and electrolytes, and closure of fetal shunts in the heart are crucial changes in the transition to extrauterine life, breathing and the exchange of oxygen for carbon dioxide must take precedence as they are essential for newborn survival.

2. The nurse is caring for a child with sickle cell anemia with the following order: Morphine Sulfate 2 mg IV every 24 hours. Morphine Sulfate is available in 10 mg/1mL. How many mL should the nurse administer?

• A. 0.2 mL
• B. 0.5 mL
• C. 1 mL
• D. 2 mL

Correct answer: A

Rationale: To administer 2 mg of Morphine Sulfate when the concentration is 10 mg/mL, the nurse should administer 0.2 mL (2 mg / 10 mg/mL = 0.2 mL). Choice B, 0.5 mL, is incorrect because it is the result of dividing 2 mg by 4 mg/mL instead of 10 mg/mL. Choice C, 1 mL, is incorrect as it would be the result of dividing 2 mg by 2 mg/mL. Choice D, 2 mL, is incorrect as it would be the result of dividing 2 mg by 1 mg/mL.

3. What is the most frequent cause of hypovolemic shock in children?

• A. Sepsis
• B. Blood loss
• C. Anaphylaxis
• D. Heart failure

Correct answer: B

Rationale: Hypovolemic shock in children is most frequently caused by blood loss, which can result from trauma, surgery, or gastrointestinal bleeding. Sepsis and anaphylaxis can lead to different types of shock (septic and anaphylactic), and heart failure is related to cardiogenic shock.

4. Which reflex, present at birth, is elicited by stroking the sole of the infant's foot, resulting in the fanning of the toes?

• A. Babinski
• B. Moro
• C. Sucking
• D. Rooting

Correct answer: A

Rationale: The Babinski reflex is the correct answer. This reflex is characterized by the fanning out of the toes when the sole of the foot is stroked. It is a normal reflex in infants and is typically present at birth, disappearing by around 12 months of age. The Moro reflex, which involves the infant's response to a sudden loss of support or a loud noise, is not related to the fanning of toes. Sucking and rooting reflexes are related to feeding behaviors and are not elicited by stroking the sole of the foot.

5. Apgar scoring is conducted at 1 minute and 5 minutes after birth. It is used to determine:

• A. Major body systems’ responses at birth
• B. Future intelligence of the newborn
• C. Level of parent and newborn interaction
• D. Gestational age of the newborn

Correct answer: A

Rationale: The Apgar score assesses a newborn's physical condition immediately after birth by evaluating heart rate, respiratory effort, muscle tone, reflex response, and color. Therefore, the correct answer is A. The other choices are incorrect because B) the Apgar score does not predict future intelligence, C) it does not measure parent and newborn interaction, and D) it is not used to determine gestational age.

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