Nursing Elites

1. Which reflex is expected to disappear by 4 months of age?

• A. Rooting reflex
• B. Moro reflex
• C. Babinski reflex
• D. Palmar grasp

Correct answer: B

Rationale: The Moro reflex, also known as the startle reflex, typically disappears by 4 months as the infant's nervous system matures. This reflex is important for assessing the development of the nervous system in newborns. The Rooting reflex (Choice A) is related to turning the head in response to cheek stimulation; the Babinski reflex (Choice C) involves the fanning of toes in response to foot stimulation; and the Palmar grasp (Choice D) is the curling of the fingers around an object placed in the infant's hand. These reflexes have different timelines for disappearance and are not typically expected to be gone by 4 months of age.

2. Which laboratory value at the time of diagnosis should the nurse anticipate would determine the worst prognosis for a child with leukemia?

• A. Slow response to chemotherapy
• B. Platelets of 150,000/mcL
• C. Leukocytes less than 10,000/mcL
• D. Leukocytes of 275,000/mcL

Correct answer: D

Rationale: A high white blood cell count (leukocytes of 275,000/mcL) at diagnosis is associated with a worse prognosis in leukemia because it indicates a more aggressive disease with a higher tumor burden. Slow response to chemotherapy (choice A) is a consequence of the aggressive disease and not a determining factor at diagnosis. Platelets of 150,000/mcL (choice B) and leukocytes less than 10,000/mcL (choice C) are within normal ranges and not indicative of a worse prognosis in leukemia.

3. An infant is suspected of having esophageal atresia/tracheoesophageal fistula. While waiting for the pediatrician to see the infant, which action should the nurse take?

• A. Position the infant with the head of the bed slightly elevated
• B. Allow the infant to bond with the mother in her room
• C. Offer the infant breastfeeding instead of formula feeding
• D. Wrap the infant in blankets and place in a crib by the viewing window

Correct answer: A

Rationale: Positioning the infant with the head of the bed elevated helps to prevent aspiration and manage secretions until further treatment can be provided. Choice B is incorrect as the priority is ensuring the infant's safety and health, not immediate bonding. Choice C is incorrect as breastfeeding may worsen the condition. Choice D is incorrect as it does not address the potential risk of aspiration associated with esophageal atresia/tracheoesophageal fistula.

4. What is a high-fiber food that the nurse should recommend for a child with chronic constipation?

• A. White rice
• B. Popcorn
• C. Fruit juice
• D. Ripe bananas

Correct answer: B

Rationale: Popcorn is a high-fiber food that can help manage chronic constipation in children. Other options like white rice and ripe bananas are low in fiber and less effective for treating constipation.

5. Which heart sound is produced by vibrations within the heart chambers or in the major arteries from the back-and-forth flow of blood?

• A. S1 and S2
• B. S3 and S4
• C. Murmur
• D. Physiologic splitting

Correct answer: C

Rationale: A murmur is produced by turbulent blood flow within the heart or major arteries, resulting in audible vibrations.

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