Nursing Elites

1. Which laboratory test would be most important for the nurse to assess when caring for a toddler suspected of having cystic fibrosis?

• A. Liver enzymes
• B. Serum calcium
• C. Sweat chloride test
• D. Urine creatinine

Correct answer: C

Rationale: The sweat chloride test is the primary diagnostic test for cystic fibrosis. Cystic fibrosis is characterized by abnormal transport of chloride and sodium across epithelial cell membranes, leading to increased chloride in sweat. This test is crucial for diagnosing cystic fibrosis in suspected cases. Liver enzymes (Choice A), serum calcium (Choice B), and urine creatinine (Choice D) are not specific tests for cystic fibrosis and would not provide the necessary information for diagnosis in this case.

2. Why does the nurse have a 2-year-old boy sit in a “tailor” position while palpating for the presence of the testes?

• A. It prevents the cremasteric reflex
• B. Undescended testes can be palpated
• C. The child has an inguinal hernia
• D. The child does not yet have a need for privacy

Correct answer: A

Rationale: The tailor position stretches the muscle responsible for the cremasteric reflex, preventing it from contracting and pulling the testes into the pelvic cavity. This position helps accurately palpate the testes. Choice B is incorrect because the position does not facilitate the palpation of undescended testes specifically. Choice C is incorrect as it does not relate to the rationale behind the tailor position. Choice D is incorrect as the reason for using the tailor position is not related to the child's need for privacy.

3. The predominant characteristic of the intellectual development of a child aged 2 to 7 years is egocentricity. Which of the following best describes this concept?

• A. Selfishness
• B. Unable to see another’s point of view
• C. Able to put self in another’s place
• D. Prefers to play alone

Correct answer: B

Rationale: Egocentricity in children aged 2 to 7 years means they are unable to see things from another person's perspective. This characteristic is a normal part of their cognitive development during this stage. Choice A, 'Selfishness,' is not an accurate description as egocentricity is more about a limited ability to understand others' viewpoints rather than intentional selfishness. Choice C, 'Able to put self in another’s place,' is incorrect as egocentric children struggle to do this. Choice D, 'Prefers to play alone,' is not directly related to egocentricity but may be a behavior exhibited by some children for various reasons.

4. Baby M is 5 months old. You notice that she now has the ability to grasp objects between her fingers and opposing thumb. This is known as:

• A. Parachute reflex
• B. Grasp reflex
• C. Pincer grasp
• D. Prehension

Correct answer: C

Rationale: The correct answer is C: Pincer grasp. The pincer grasp is the ability to hold objects between the thumb and another finger, typically developed around 9-12 months. At 5 months, it is early for a pincer grasp to fully develop, but the beginning of this skill can be seen as early as 5 months. Choices A and B are incorrect as the parachute reflex is a protective response to falling and the grasp reflex is an automatic response to touch. Choice D, prehension, is a general term for the act of grasping or holding objects, but it does not specifically refer to holding objects between the thumb and fingers like the pincer grasp does.

5. In the newborn, into what muscle is intramuscular vitamin K administered?

• A. Deltoid
• B. Dorsogluteal
• C. Rectus femoris
• D. Vastus lateralis

Correct answer: D

Rationale: In newborns, intramuscular vitamin K is traditionally administered into the vastus lateralis muscle. This site is preferred due to its large muscle mass and accessibility. The dorsogluteal site is not recommended for newborns due to the risk of injury to the sciatic nerve. The deltoid site is also not recommended for newborns. The rectus femoris muscle is not commonly used for intramuscular injections in newborns.

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