which reflex is expected to disappear by 4 months of age
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Nursing Elites

ATI RN

ATI Nursing Care of Children 2019 B

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

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. A new mom is ready to introduce solid foods to her infant. Which food would you recommend starting with?

Correct answer: B

Rationale: The correct answer is B: Rice cereal. Rice cereal is typically the first solid food introduced to infants because it is easy to digest and unlikely to cause an allergic reaction. Starting with rice cereal helps assess the baby's readiness for solid foods and reduces the risk of allergic responses. Choice A (Meat) is not recommended as the initial solid food due to its higher allergenic potential. Choices C (Fruits) and D (Vegetables) are also not usually recommended as the first solid food, as they may be more challenging for infants to digest compared to rice cereal.

3. When auscultating an infant's lungs, the nurse detects diminished breath sounds. What should the nurse interpret this as?

Correct answer: C

Rationale: Diminished breath sounds in an infant are an abnormal finding and warrant further investigation to rule out conditions like atelectasis or pneumonia.

4. For a child with Kawasaki disease, which symptom is most indicative of the acute phase?

Correct answer: A

Rationale: The correct answer is A: Strawberry tongue. In Kawasaki disease, a 'strawberry tongue' is most indicative of the acute phase. This refers to the tongue appearing red and swollen with enlarged fungiform papillae, giving it a strawberry-like appearance. Joint pain (Choice B) is more commonly associated with other conditions like rheumatoid arthritis. Rash (Choice C) and peeling skin (Choice D) are also seen in Kawasaki disease but are not as specific to the acute phase as the presence of a strawberry tongue.

5. The nurse is assessing a 3-day-old breastfed newborn who weighed 3400 g (7 pounds, 8 oz) at birth. The infant’s mother is now concerned because the infant weighs 3147 g (6 pounds, 15 oz). The most appropriate nursing intervention is what?

Correct answer: B

Rationale: A neonate normally loses about 10% of the birth weight by age 3 to 4 days. The birth weight is usually regained by the 10th day of life. In this case, the weight loss from 3400 g to 3147 g is within the expected range. Therefore, the most appropriate action is to explain to the mother that this weight loss is within normal limits. Choice A is incorrect because supplemental feedings of formula are not indicated for this expected weight loss in a breastfed newborn. Choice C is incorrect as there is no evidence to suggest excessive weight loss at this point. Choice D is unnecessary at this stage and may not align with the current situation of normal weight loss post-birth.

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