Nursing Elites

1. What is the MOST common cause of shock in infants and children?

• A. Severe allergic reaction
• B. Dehydration
• C. Accidental poisoning
• D. Cardiac failure

Correct answer: B

Rationale: Dehydration is the most common cause of shock in infants and children. In children, the body's fluid reserves are smaller compared to adults, making them more susceptible to dehydration, which can lead to shock if not promptly addressed. Severe allergic reactions, accidental poisoning, and cardiac failure can also cause shock, but dehydration is the most frequent cause in this age group.

2. Which of the following parameters is the LEAST reliable when assessing the perfusion status of a 2-year-old child?

• A. Capillary refill time
• B. Presence of peripheral pulses
• C. Skin color and temperature
• D. Systolic blood pressure

Correct answer: D

Rationale: Systolic blood pressure is the least reliable parameter when assessing perfusion status in a 2-year-old child. In young children, blood pressure measurements can be variable, affected by factors like anxiety or crying. Capillary refill time, presence of peripheral pulses, and skin color and temperature are more reliable indicators of perfusion status in this age group.

3. The nurse is preparing to administer vitamin K to a newborn. The mother asks why this injection is necessary. What is the nurse's best response?

• A. It helps the baby's liver function properly.
• B. It prevents bleeding disorders in the newborn.
• C. It boosts the baby's immune system.
• D. It promotes the baby's growth and development.

Correct answer: B

Rationale: The correct answer is B. Vitamin K is administered to newborns to prevent bleeding disorders since they have low levels of vitamin K, which is essential for blood clotting. By providing this injection, the nurse ensures that the newborn has an adequate supply of vitamin K to support proper blood clotting and prevent potential bleeding complications. Choices A, C, and D are incorrect because vitamin K's primary role in newborns is related to blood clotting and preventing bleeding, not liver function, immune system, or growth and development.

4. What characteristic indicates that a mass on a newborn's head is a cephalohematoma?

• A. The mass appears on the second day after birth.
• B. The mass grows larger when the newborn cries.
• C. The head appears asymmetrical.
• D. The mass is located on only one side of the head.

Correct answer: A

Rationale: A cephalohematoma typically appears between the first and second days after birth, making choice A the correct answer. It results from blood vessel rupture between a cranial bone and the periosteal membrane. Choices B, C, and D are incorrect because the growth of the mass when the newborn cries, asymmetrical head appearance, or the mass being located on only one side of the head are not specific indicators of a cephalohematoma.

5. What percentage of total body surface area has been burned in a 5-year-old child who experienced partial-thickness burns to his head, anterior chest, and both upper extremities?

• A. 45%
• B. 63%
• C. 72%
• D. 54%

Correct answer: A

Rationale: According to the pediatric rule of nines, the head and neck represent 18%, the anterior chest and abdomen 18%, and each arm 9%. By adding these percentages (18% + 18% + 9% + 9% = 45%), we find that 45% of the total body surface area has been burned in this child.

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