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. What type of shock is characterized by a hypersensitivity reaction causing massive vasodilation and capillary leaks, which may occur with drug or latex allergy?

Correct answer: D

Rationale: Anaphylactic shock is a severe allergic reaction that causes massive vasodilation and increased capillary permeability, leading to rapid fluid shifts and circulatory collapse if not treated promptly. Neurogenic, cardiogenic, and hypovolemic shocks have different etiologies.

3. Melena, the passage of black, tarry stools, suggests bleeding from which source?

Correct answer: B

Rationale: Melena indicates bleeding from the upper GI tract. The black, tarry appearance of the stool results from the partial digestion of blood as it passes through the intestines, typically originating from sources like the stomach or duodenum. Lower GI bleeding usually presents as bright red blood in the stool, originating from sources like the colon or rectum. Choices A, C, and D are incorrect because melena specifically points to upper GI bleeding rather than issues in the perianal/rectal area, lower GI tract, or hemorrhoids/anal fissures.

4. The nurse is interviewing the mother of an infant. The mother reports, "I had a difficult delivery, and my baby was born prematurely." This information should be recorded under which heading?

Correct answer: A

Rationale: The history section of the health record includes details about pregnancy, labor, and delivery, as these factors can have significant implications for the child's health.

5. At a well-child visit, parents ask the nurse how to know if a daycare facility is a good choice for their infant. Which observation should the nurse stress as especially important to consider when making the selection?

Correct answer: C

Rationale: Ensuring that providers practice proper handwashing after diaper changes is crucial in preventing the spread of infections and maintaining a hygienic environment for the infants.

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