what is the most critical physiologic change required of newborns at birth
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Nursing Elites

ATI RN

RN Nursing Care of Children Online Practice 2019 A

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

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. An infant, age 6 months, has six teeth. The nurse should recognize that this is what?

Correct answer: D

Rationale: Having six teeth at 6 months is earlier than the typical tooth eruption schedule, but it is not unusual or dangerous. It is within the range of normal variations in infant development.

3. A mother reports to the nurse that her 6-year-old child is highly active, irritable, irregular in habits, and adapts slowly to new routines, people, or situations. Which pattern of temperament would best describe the child?

Correct answer: B

Rationale: The 'difficult' child is the best way to describe the child in this scenario. This temperament is characterized by high activity levels, irritability, irregular habits, and difficulty adapting to changes. Choice A, the 'easy' child, is known for being generally positive and adaptable. Choice C, the 'slow-to-warm-up' child, typically needs time to adapt to new situations but is not necessarily highly active or irritable. Choice D, the 'fast-to-warm-up' child, adapts quickly to new situations, which contrasts with the child's slow adaptation mentioned in the scenario.

4. Physiological anorexia in toddlerhood occurs because of:

Correct answer: A

Rationale: Physiological anorexia in toddlers occurs due to a decreased appetite as growth rates slow down. Choice A is correct because it aligns with the concept that toddlers experience a natural decrease in appetite as their growth rate decreases. Choices B, C, and D are incorrect because they suggest increased appetite or other factors not associated with physiological anorexia in toddlerhood.

5. What recommendation should the nurse make to prevent urinary tract infections (UTIs) in young girls?

Correct answer: C

Rationale: Proper perineal hygiene, including cleansing with water after voiding, is crucial in preventing UTIs in young girls. Avoiding public toilets and limiting baths are less effective than proper hygiene practices.

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