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 nurse is working with the local community on promoting physical fitness for children. The nurse encourages the community to develop programs that meet the needs of the school-aged child for physical activity, based on the understanding that this age group requires how much physical activity daily?

Correct answer: B

Rationale: The correct answer is B: 60 minutes. School-aged children require at least 60 minutes of physical activity daily according to recommendations. This level of activity helps in promoting overall health, development, and well-being. Choice A (30 minutes) is incorrect as it falls short of the recommended duration. Choice C (90 minutes) is excessive and not the standard guideline for this age group. Choice D (15 minutes) is insufficient to meet the physical activity needs of school-aged children.

3. A child is admitted in acute renal failure (ARF). Therapeutic management to rapidly provoke a flow of urine includes the administration of what medication?

Correct answer: C

Rationale: Mannitol and furosemide are diuretics commonly used to induce diuresis in acute renal failure, helping to provoke urine flow and manage fluid overload. Calcium gluconate and electrolyte supplementation are used for other specific conditions and not primarily for diuresis.

4. Which reflex, present at birth, is elicited by stroking the sole of the infant's foot, resulting in the fanning of the toes?

Correct answer: A

Rationale: The Babinski reflex is the correct answer. This reflex is characterized by the fanning out of the toes when the sole of the foot is stroked. It is a normal reflex in infants and is typically present at birth, disappearing by around 12 months of age. The Moro reflex, which involves the infant's response to a sudden loss of support or a loud noise, is not related to the fanning of toes. Sucking and rooting reflexes are related to feeding behaviors and are not elicited by stroking the sole of the foot.

5. A toddler’s mother calls the nurse because she thinks her son has swallowed a button type of battery. He has no signs of respiratory distress. The nurse’s response should be based on which premise?

Correct answer: B

Rationale: Radiographic examination is essential to confirm the location of the battery, as it can cause significant damage, particularly if lodged in the esophagus. Immediate surgery may be required depending on its location and the potential for causing harm.

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