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. The nurse is teaching the family of a child with a long-term central venous access device about signs and symptoms of bacteremia. What finding indicates the presence of bacteremia?

Correct answer: C

Rationale: Fever and general malaise are systemic signs of bacteremia, indicating that the infection may have spread beyond the local entry site. Localized pain, redness, and swelling are signs of a localized infection but do not necessarily indicate bacteremia.

3. Which type of breath sound is normally heard over the entire surface of the lungs except for the upper intrascapular area and the area beneath the manubrium?

Correct answer: A

Rationale: Vesicular breath sounds are normally heard over most of the lung fields, except near the trachea and main bronchi, where bronchial or bronchovesicular sounds may be heard.

4. Apgar scoring is conducted at 1 minute and 5 minutes after birth. It is used to determine:

Correct answer: A

Rationale: The Apgar score assesses a newborn's physical condition immediately after birth by evaluating heart rate, respiratory effort, muscle tone, reflex response, and color. Therefore, the correct answer is A. The other choices are incorrect because B) the Apgar score does not predict future intelligence, C) it does not measure parent and newborn interaction, and D) it is not used to determine gestational age.

5. What is the best initial intervention for a child experiencing moderate dehydration?

Correct answer: B

Rationale: The correct answer is B: Encourage oral rehydration. Oral rehydration is the first-line treatment for moderate dehydration in children. It helps restore fluid balance and electrolyte levels. Administering IV fluids (Choice A) is usually reserved for severe cases of dehydration where oral rehydration is not feasible or ineffective. Monitoring vital signs (Choice C) is important but should not replace the immediate need for rehydration. Providing clear fluids (Choice D) may not contain the necessary electrolytes required for effective rehydration.

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